Category: astronomy

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396 sites · page 1 of 2

• - ASLI [2026-07-07]
  The Astronomical Society of Long Island (ASLI) is an amateur astronomy club that holds weekly meetings at the Vanderbilt Planetarium in Centerport, NY, with Zoom broadcasts available for remote attendees. Visitors can join observing sessions, get telescope advice, and explore the night sky alongside dedicated hobbyist astronomers without needing to own any equipment.
• ... We are starstuff ... The Carl Sagan Fanlisting [2026-07-07]
  A fanlisting dedicated to the beloved astronomer and science communicator Carl Sagan, gathering fans from around the world who admire his work and legacy. Built and maintained by a fan known as C.:., the site includes information about Sagan, membership listings, and links to related resources.
• "The Astronomer's Home"... [2026-07-07]
  Tammy Plotner's astronomy site is a sprawling personal observatory journal covering years of nightly observing reports, constellation starhop guides, solar and lunar photography, aurora sightings, and deep sky sketches. With content spanning from 2001 to 2007 and sections on Messier studies, planetary transits, and star parties across Ohio and beyond, this is a genuine labor of love for backyard astronomers.
• /home [2026-07-07]
  Johannes Schedler's Panther Observatory showcases stunning astrophotography covering the moon, sun, planets, comets, deep sky objects, and constellations, including imaging results from a semi-professional remote observatory at CTIO in Chile. The site also invites visitors to stay at a guest house in Altaussee, Austria, offering dark skies and alpine observing facilities.
• 105.7 L.Y. [2026-07-07]
  A personal site titled '105.7 Light Years' on Neocities, offering desktop and mobile versions of its content with accompanying photos. The light-year themed title and structure suggest an astronomy or space-related focus, though the site is currently partially broken.
• 12 Month Sky Map Index [2026-07-07]
  David Haworth's stargazing site offers a comprehensive index of printable sky maps organized by month, time, and observing location, with five detail levels ranging from basic star fields to full constellation boundaries. Each map links to more detailed constellation charts, making this a practical reference for amateur astronomers heading out for a night of naked-eye or telescopic observing.
• 2MASS Atlas Image Gallery [2026-07-07]
  The 2MASS Atlas Image Gallery at IPAC (California Institute of Technology) showcases stunning false-color infrared composite images from the Two Micron All Sky Survey, covering everything from solar system objects and nebulae to galaxies and star clusters. Compiled from three infrared wavelength bands mapped to visible colors, this publicly released collection serves as both a scientific resource and a visually compelling window into the infrared universe.
• 3-D Starmaps [2026-07-07]
  Winchell Chung (aka Nyrath the nearly wise) maintains this ambitious 3-D starmap project dedicated to the golden age of science fiction and real astronomical data. Inspired by E.E. 'Doc' Smith's classic space operas, the site blends scientific accuracy with a deep love of the stars to create interactive three-dimensional maps of nearby stellar neighborhoods.
• 40 Eridani (Omicron2 Eridani, Keid) [2026-07-07]
  David Darling's encyclopedia entry on 40 Eridani covers the nearby trinary star system in Eridanus, including its white dwarf, red dwarf, and orange main-sequence components, with detailed discussion of habitability and its famous role as Vulcan's star in Star Trek. Part of a broader astronomy encyclopedia, this page blends rigorous stellar data with engaging science fiction connections, complete with NASA imagery and comparisons to our own solar system's habitable zone.
• A Tour of Orion, the Hunter [2026-07-07]
  Created by Ronald J. Maddalena of the National Radio Astronomy Observatory, this interactive tour guides visitors through the Orion constellation using five images captured at different wavelengths including optical, infrared, and radio. Visitors can explore astronomical objects in Orion, learn the mythology behind the hunter, take a glossary-supported test, and see how the same region of sky looks dramatically different depending on the telescope used.
• AAAP — Amateur Astronomers Association of Princeton [2026-07-07]
  The Amateur Astronomers Association of Princeton (AAAP) is the official web presence for a New Jersey-based astronomy club bringing together hobbyists and enthusiasts to observe and explore the night sky together. Visitors can expect to find club meeting information, observing events, and resources for amateur stargazers of all experience levels.
• AAS - Aberdeen Astronomical Society [2026-07-07]
  The Aberdeen Astronomical Society (AAS) is a Scottish astronomy club based in Aberdeenshire, hosting regular meetings, dark sky observing sessions, and public talks both in person and via Zoom. The site features aurora photography by members, an interactive star chart for Aberdeen, upcoming event listings, and a night sky section covering visible astronomical events from the local area.
• Aboriginal (Native American) Star Knowledge [2026-07-07]
  Menu: Created by Paula Giese, this richly detailed site explores Native American and Aboriginal astronomy, covering Lakota star knowledge, sacred star maps, medicine wheels as solar-stellar observatories, and indigenous constellation traditions. It serves as an educational hub with links to Lakota theology, archaeoastronomy, star stories, and teacher resources for native-centered science curricula.
• About MicroObservatory [2026-07-07]
  MicroObservatory is an internet-controlled robotic telescope network developed by scientists and educators at the Harvard-Smithsonian Center for Astrophysics, designed to let students across the country capture real deep-sky images from their classrooms. Visitors can control telescopes remotely, analyze astronomical images, and access educational projects tied to NASA's educational mission.
• ActonAstro [2026-07-07]
  ActonAstro is a hobbyist astronomy site built by a California stargazer who went from a beginner 60mm refractor to a full backyard observatory with a Celestron 9.25-inch scope. Visitors will find astrophotography galleries, equipment reviews, polar alignment guides, and personal weather station data, all rooted in a genuine passion for the night sky.
• ADS Virtual library (Books) [2026-07-07]
  The NASA Astrophysics Data System (ADS) Virtual Library offers free online access to a curated collection of astronomy and astrophysics books, ranging from Copernicus's 1543 classic to modern astrophysics textbooks. Researchers and enthusiasts alike can browse and print foundational works on celestial mechanics, stellar astrophysics, lunar science, and solar physics from leading institutions like Harvard and the Lunar and Planetary Institute.
• Advanced Composition Explorer (ACE) Home Page [2026-07-07]
  The official homepage for NASA's Advanced Composition Explorer (ACE) spacecraft, hosted at Caltech, providing mission data, instrument specifications, and real-time solar wind readings. Visitors can access browse plots, science publications, press releases about cosmic ray research, and data from nine onboard instruments measuring solar and galactic particle composition.
• Adventures in Deep Space [2026-07-07]
  Challenging Observing Projects for Amateur Astronomers: Adventures in Deep Space is a rich amateur astronomy resource built by Steve Gottlieb and collaborators, offering challenging observing projects covering peculiar galaxies, galaxy clusters, Abell planetaries, and much more. Packed with NGC/IC notes, finder charts, observing reports from star parties, and curated catalogs, it is a go-to destination for serious deep-sky observers hunting rarely seen objects.
• Akira Fujii constellations [2026-07-07]
  A stunning image gallery showcasing the complete Akira Fujii and David Malin Images (DMI) collection of astrophotography, organized into categories including constellations, Milky Way, star trails, solar eclipses, comets, and aurorae. The collection features wide-field photographs of the southern sky taken from Australian observatories, capturing objects like the Southern Cross, Carina Nebula, and Comet McNaught with remarkable detail.
• Al Kelly's CCD Astrophotography Page [2026-07-07]
  Al Kelly's dedicated astrophotography site showcases stunning CCD images of galaxies, nebulae, star clusters, and solar system objects captured with equipment including a Celestron CGE 1400 telescope and Orion Parsec 8300C camera. Beyond the image galleries, the site offers a CCD instruction manual, a G2V color calibration article, and links to fellow astrophotographers, making it a valuable resource for amateur astronomers interested in CCD imaging.
• All cats are fueled by autism in their own unique way. [2026-07-07]
  Tangle's personal corner of the web belongs to an autistic Australian graduate student of Space Science with wide-ranging interests and ambitious creative projects. The site features a blog, character bios, and various personal sections, all wrapped in a warm and quirky introduction that hints at much more content to come.
• ALPO Home Page - Association of Lunar and Planetary Observers [2026-07-07]
  The Association of Lunar and Planetary Observers (ALPO) is a long-running scientific organization connecting amateur and professional astronomers who study the Solar System, with dedicated sections covering everything from Mercury and Venus to comets, meteors, and eclipses. Visitors can access the latest issue of their peer-reviewed journal 'The Strolling Astronomer,' join observing sections, and tap into decades of planetary observation data and community research.
• Amateur Astronomical Observatories | List Of Astronomical Observatories [2026-07-07]
  The Nine Planets hosts a curated list of amateur astronomical observatories built by individual hobbyists, compiled by the site owner during research for their own backyard observatory project. Visitors will find practical inspiration and design ideas ranging from simple roll-off roof builds to more complex dome structures, all set within a broader astronomy reference site covering planets, stars, comets, and equipment guides.
• Ames Area Amateur Astronomers [2026-07-07]
  The Ames Area Amateur Astronomers (AAAA) is a non-profit 501(c)3 club based in Ames, Iowa, dedicated to sharing the wonders of the night sky through outreach events, club meetings, and the annual Iowa Star Party. Members gain access to a newsletter, astronomy updates, and the club's observatory at McFarland Park, making it a great hub for both beginners and seasoned stargazers in central Iowa.
• An Atlas of The Universe [2026-07-07]
  Created by Richard Powell, this stunning educational site presents nine nested maps of the universe, each roughly ten times the scale of the previous, zooming out from the nearest stars to the entire visible universe 14 billion light years away. Multilingual and richly illustrated, it offers a rare sense of cosmic scale that makes abstract astronomical distances genuinely comprehensible.
• An Etymological Dictionary of Astronomy and Astrophysics - English-French-Persian [2026-07-07]
  Created by M. Heydari-Malayeri at the Paris Observatory, this trilingual etymological dictionary covers thousands of astronomy and astrophysics concepts in English, French, and Persian, tracing the roots and definitions of terms from the oldest to the newest. It stands out as a freely accessible, interdisciplinary reference that fills a gap left by conventional astronomical glossaries, with entries organized alphabetically and supplemented by historical and linguistic context.
• An Observing Guide For Comets [2026-07-07]
  Created by Martin McKenna of Nightskyhunter.com, this detailed guide covers everything an amateur astronomer needs to observe comets, from naked-eye viewing to advanced astrophotography and scientific contribution through light curve work. The site includes comet sketches, hunting statistics, observing adventure logs, and links to major comet resources, making it a rich reference for anyone fascinated by these unpredictable visitors to our skies.
• Ancient-Skies - Human Cultures and Their Skies - Home [2026-07-07]
  Ancient-Skies is a collaborative scientific knowledgebase dedicated to documenting how human cultures across history have understood and represented the night sky. The project, launched around the International Year of Astronomy 2009, aims to gather and verify information from primary sources, making cultural astronomy accessible to both the general public and researchers worldwide.
• Antelope Valley Astronomy Club - Welcome to the Antelope Valley Astronomy Club [2026-07-07]
  The Antelope Valley Astronomy Club (AVAC) is a nonprofit organization founded in 1982 to share the wonders of the night sky with families in northeastern Los Angeles County. Members range from beginners to advanced observers, and the club offers monthly meetings, school presentations, observing programs, and resources like telescope guides and DSO observing lists.
• Ant�nio Cidad�o's Home-Page of Lunar and Planetary Observation and CCD Imaging [2026-07-07]
  António Cidadão's dedicated astronomy site showcases years of lunar and planetary observation from Carcavelos, Portugal, featuring CCD imaging of the Moon, Mars, Jupiter, and Saturn captured with a 14-inch SCT telescope. The site includes detailed imaging guides covering super-resolution techniques, tri-colour imaging, limb darkening correction, time-lapse animations, and a Moon-Light Atlas reference, making it a rich resource for amateur planetary imagers.
• aoas.org [2026-07-07]
  AOAS (Amateur Observers' Astronomical Society) is a club website for astronomy enthusiasts, likely featuring meeting information, observing events, and resources for stargazers. The domain and structure suggest a regional astronomy club serving members interested in telescopes, sky-watching, and community observing sessions.
• AOS of NY - Web Site Links [2026-07-07]
  The Amateur Observers' Society of New York maintains this comprehensive links directory covering astronomical magazines, podcasts, space agencies, comet and meteor shower resources, astronomy apps, dealers, and member websites. A well-organized gateway for amateur astronomers in the New York area, the page also highlights member-exclusive discounts on publications like Sky and Telescope and Astronomy Magazine.
• Around Physics and Astronomy [2026-07-07]
  A rich hobbyist resource by J. Giesen featuring an extensive collection of Java and JavaScript applets covering astronomy topics like sun and moon phases, planet positions, sundials, Venus transits, and satellite observation. Visitors will also find physics quizzes, chaos and fractal simulations, color theory tools, and links to books and software, making it a deep interactive playground for science enthusiasts.
• Arp's Catalog Of Peculiar Galaxies [2026-07-07]
  A comprehensive amateur astronomy resource dedicated to Halton C. Arp's Atlas of Peculiar Galaxies, cataloging all 338 peculiar and interacting galaxy entries with supporting data, imagery, and observing guidance. Built by and for amateur observers, the site bridges professional archival photography from the Palomar 200-inch telescope with modern amateur CCD imaging to show that anyone with a backyard telescope can observe these remarkable objects.
• ASN Homepage [2026-07-07]
  The Astronomical Society of Nevada (ASN) has been promoting astronomy education and public outreach since 1934, making it one of the longer-running amateur astronomy clubs in the region. Visitors can find club membership info, meeting schedules at the Fleischmann Planetarium in Reno, observing resources, photo galleries, and details on events like Messier marathon nights.
• ASSA Bloemfontein Astronomy Club [2026-07-07]
  The ASSA Bloemfontein Centre is a non-profit astronomy club based in Bloemfontein, South Africa, welcoming enthusiasts of all experience levels with interests ranging from astrophotography to telescope making. The site chronicles their annual Free State Star Party events spanning over a decade, shares resources including radio segments on stars and planets, and preserves local astronomical history such as the historic Lamont-Hussey Observatory.
• ASTAP & HNSKY programs [2026-07-07]
  Home of ASTAP and HNSKY, two free astronomy programs offering image stacking, plate solving, and a full-featured planetarium for amateur astronomers and astrophotographers. The creator also shares their own astrophotography images and equipment details, making this a practical hub for both software users and sky enthusiasts.
• Asterisms [2026-07-07]
  David Ratledge's guide to observing asterisms takes readers through a collection of star patterns visible through binoculars and small telescopes, complete with images and observing tips. Inspired by a 1998 Sky & Telescope article, this page celebrates overlooked celestial dot-to-dot patterns like Kemble's Cascade, the Coathanger, and the ET Cluster with genuine enthusiasm and hands-on detail.
• Asteroid Occultation Predictions [2026-07-07]
  Steve Preston's long-running resource provides predictions for asteroid occultation events, listing when asteroids will pass in front of stars as seen from Earth. Covering upcoming events through 2026 with supplementary observation guides and FAQs, it serves as a reference for amateur and professional astronomers tracking these brief but scientifically valuable phenomena.
• Astro Links [2026-07-07]
  The Astronomical Society of Greenwich Hills (ASGH) maintains this curated links page connecting amateur astronomers to periodicals, regional astronomy clubs, observatories, equipment suppliers, and NASA educational resources. A thorough reference hub for stargazers in Connecticut and New England, it lists dozens of affiliated clubs and organizations alongside tools for both hobbyists and kids.
• Astrochemistry [2026-07-07]
  Astrochemistry.eu, maintained by Guido W. Fuchs, serves as a collaborative hub for researchers in astrophysics and astrochemistry, covering observational, laboratory, and theoretical investigations of interstellar chemistry. Visitors can find featured news on prize-winning discoveries, upcoming conferences, job opportunities, and curated links to major databases, journals, and research networks worldwide.
• Astrofotografie von Sebastian Voltmer [2026-07-07]
  Sebastian Voltmer's personal astrophotography site showcases stunning images of deep-sky objects, galaxies, nebulae, and planets captured through his telescope. The site blends scientific passion with artistic vision, featuring photos and videos of the cosmos from locations including the French Alps.
• Astrolabe Astronomy Club [2026-07-07]
  The Astrolabe Astronomy Club is a local amateur astronomy club based in Wheeling, WV, offering information on membership, meetings, and events for stargazing enthusiasts. Created by Pat Plunkett, this early-2000s club site serves as a community hub for sky watchers in the West Virginia area.
• AstroMag [2026-07-07]
  AstroMag is an informational astronomy website covering celestial bodies, space weather, gamma-ray bursts, eclipses, and deep-space phenomena in accessible language for general readers. Articles span topics from Jupiter's moons to the Kuiper Belt, making complex astronomical concepts approachable without requiring a scientific background.
• Astrometry and Celestial Mechanics - Astrometry.org - Istituto Scientia [2026-07-07]
  Astrometry.org is an educational resource by Istituto Scientia dedicated to popularizing astrometry and celestial mechanics, two of astronomy's oldest classical branches. Visitors can explore topics like star positions, orbital mechanics, the SAO star catalog, and an online planetarium, with historical context tracing these sciences from ancient Greece through Galileo and Newton.
• Astronomers - The Night Sky This Month [2026-07-07]
  A comprehensive amateur astronomy resource covering the monthly night sky, planetary facts, eclipse details, Messier objects, telescope guides, and an astro dictionary for beginners. The site also extends into amateur radio with club listings, beginner guides, and rally information with GPS postcodes.
• Astronomiae Historia / History of Astronomy [2026-07-07]
  Hosted at the University of Bonn's Argelander Institute for Astronomy, this long-running site by Wolfgang R. Dick serves as a curated hub for the history of astronomy, linking to resources on history of science, notable events like the Simon Marius symposium, and the Working Group for the History of Astronomy. Created in 1995 and maintained for decades, it bridges academic astronomy with historical scholarship in both English and German.
• Astronomical & Nightscape Photography by Chris Cook [2026-07-07]
  Chris Cook's extensive astrophotography portfolio spans nearly four decades of celestial imaging, featuring deep sky objects, comets, eclipses, auroras, and stunning nightscape photography captured on both film and digital equipment. With NASA APOD features, astrophotography workshops, and a vast archive organized by technique and subject, this is a remarkable showcase of dedication to the craft.
• Astronomical Society of Northern New England [2026-07-07]
  The Astronomical Society of Northern New England (ASNNE) is an all-volunteer non-profit based in Kennebunk, Maine, founded in 1982 to promote public awareness of astronomy. Members enjoy star parties, telescope observing sessions, monthly discussions, and access to the Starfield Observatory, making it welcoming for beginners and experienced amateur astronomers alike.
• Astronomical Society of NSW [2026-07-07]
  The Astronomical Society of NSW (ASNSW) is a membership-based club for amateur and professional astronomers in New South Wales, Australia, offering meetings, star parties, astroimaging groups, and access to a dedicated dark-sky observing site called Wiruna near Ilford. Members enjoy a monthly journal called UNIVERSE, public outreach events, online learning resources, and coverage of upcoming celestial events including the Total Solar Eclipse of 2028.
• Astronomical Society of South Australia - ASSA [2026-07-07]
  The Astronomical Society of South Australia (ASSA) is an active community organization offering public and member viewing nights, monthly meetings, and astronomy resources for all skill levels. The site features a rich collection of guides covering astrophotography, comets, variable stars, Aboriginal astronomy, and solar system events, plus details on observing sites like Stockport Observatory.
• Astronomical Society of the Desert Homepage [2026-07-07]
  The Astronomical Society of the Desert (ASOD) is an amateur astronomy club with resources for beginners, star party schedules, observing site information, and membership details. Maintained by Bruce G, this old-web club homepage offers a glimpse into organized community stargazing in a desert region ideal for clear-sky observing.
• astronomy [2026-07-07]
  Julio Costa shares his lifelong passion for amateur stargazing, recounting memorable early encounters with telescopes and the purchase of a Celestron 8-inch Schmidt-Cassegrain reflector. The page includes personal photos of the moon and Jupiter with its moons, accompanied by warm, humorous writing about the joys and quirks of backyard astronomy.
• Astronomy and Related [2026-07-07]
  Created by J. Giesen, this rich astronomy resource features interactive Java applets for computing solar and lunar positions, planetary visibility, eclipses, sunrise/sunset tables, and much more. Standout features include a top-rated GeoAstro Applet Collection, detailed coverage of the Venus transits and Mars oppositions, and tutorials on astrophysics topics like stellar formation and the Saros cycle.
• Astronomy articles, forums, listings, and other resources about Astronomy. [2026-07-07]
  Astronomy.Net is a comprehensive hub for amateur and professional astronomers alike, offering articles, forums, constellation guides, sky event calendars, and equipment classifieds all in one place. Built and maintained by John Huggins since 1994, the site covers everything from telescope optics and astrophotography to meteor showers and planetary conjunctions.
• Astronomy Boy [2026-07-07]
  Amateur Astronomy: Jeff DeTray's AstronomyBoy.com is a rich resource for amateur astronomers covering everything from beginner telescope guides to DIY barn door trackers, homemade eyepieces, and mount repair tutorials. The site features constellation portraits, a deep sky observing list, eclipse photography tips, and detailed walkthroughs of equatorial mount mechanics, all drawn from Jeff's personal experience at his Black Swamp Observatory.
• Astronomy Club of Akron [2026-07-07]
  The Astronomy Club of Akron (ACA) is a 501(c)3 non-profit serving Summit County, Ohio, with star parties, solar observing events, monthly meetings featuring guest speakers, and access to a 16-inch observatory telescope. The site hosts event schedules, member astrophotos, newsletters, membership info, and links to live solar and lunar data resources.
• Astronomy Club of Tulsa [2026-07-07]
  The Astronomy Club of Tulsa is a non-profit organization that has been bringing astronomy to Oklahoma residents since 1937, operating its own observatory southwest of Tulsa near Mounds and hosting regular public stargazing events. Visitors can find event schedules, monthly newsletters, sky maps, and resources for both beginners and experienced astronomers.
• Astronomy Club of Virginia Tech [2026-07-07]
  The Astronomy Club of Virginia Tech hosts this homepage for students and enthusiasts interested in stargazing, telescope use, and observing events at the Prices Fork Observatory. Visitors will find meeting schedules, officer contacts, club photos, and a curated set of observing tools including Messier maps and monthly sky charts.
• Astronomy Clubs | © List | GO ASTRONOMY [2026-07-07]
  GO ASTRONOMY hosts a comprehensive directory of over 600 amateur astronomy clubs across all 50 U.S. states, plus international listings spanning countries from Japan to Germany. Visitors can search by state to find local clubs offering meetings, star parties, viewing nights, and stargazing programs, making it an essential starting point for anyone wanting to connect with fellow astronomers.
• Astronomy For You [2026-07-07]
  Run by Gadi Eidelheit, this astronomy blog covers celestial events like Venus transits, solar perihelion, lunar phases, and space missions with original photography. The site is a rich mix of observational astronomy and astrophotography, with an impressive archive of posts and labels spanning planets, eclipses, satellites, and even the Israeli Beresheet lunar mission.
• Astronomy in Edinburgh - Astronomical Society of Edinburgh [2026-07-07]
  The Astronomical Society of Edinburgh has been sharing a love of astronomy since 1924, hosting hybrid in-person and online meetings, observing group sessions, and public talks several times a month. Visitors can explore sky diaries, knowledge articles, beginner observing lists, meteor camera data, and a Messier/Caldwell project archive alongside a live interactive solar system map.
• Astronomy In Your Hands [2026-07-07]
  Created by Chris Hilder, Astronomy In Your Hands offers free hands-on astronomy activities for classrooms and home learners, including a well-known downloadable Star Wheel planisphere for identifying stars with minimal equipment. The site earned the prestigious Griffith Observatory Star Award and provides low-tech, DIY-friendly resources suited for kids, students, and teachers alike.
• Astronomy Ireland | Radio Show [2026-07-07]
  Astronomy Ireland Radio Show (AIRS) is the podcast and live broadcast archive for Ireland's dedicated astronomy radio program, transmitted every Tuesday on 103.2 Dublin City FM. Visitors can stream or download episodes featuring guests like Sir Patrick Moore, with archives spanning back through 2017 and a team including presenter Ben Emmett and sky notes by David Moore.
• Astronomy links [2026-07-07]
  Assembled by John S. Reid at the University of Aberdeen, this curated astronomy links page was built to support a Level 1 Astronomy class, covering general astronomy, the solar system, space missions, and observatories. With over 200 links organized into clear sections, it points students to tools like Stellarium, NASA catalogues, online textbooks, and the European Space Agency.
• Astronomy Links [2026-07-07]
  A comprehensive curated directory of astronomy links collected from mailing lists like ASTRO and HASTRO-L, covering everything from beginner stargazing tips to telescope making, satellite tracking, and the history of ancient calendars. Hosted on the South African Astronomical Observatory domain, this resource spans hundreds of links organized into detailed categories for amateur and serious astronomers alike.
• ASTRONOMY LINKS [2026-07-07]
  Clark M. Thomas of Roanoke, VA has assembled one of the most comprehensive astronomy link directories on the old web, covering everything from cosmology and black holes to amateur CCD imaging and deep sky observing. Alongside the curated links, Clark shares his own original essays on topics ranging from dark matter and primordial black holes to UFO phenomena and climate change, making this both a jumping-off point and a destination in itself.
• ASTRONOMY LINKS - Pleine Lune [2026-07-07]
  Clark M. Thomas of Roanoke, VA has assembled a free, non-commercial collection of astronomy links organized to help stargazers at all experience levels discover resources, from deep sky databases and space telescope galleries to star party listings and homework help. Highlights include curated 'Best of the Best' picks, a newest-links section for returning visitors, and a broad sweep of resources covering Mars missions, the Messier catalog, observing clubs, and more.
• Astronomy Links — Popular Astronomy Club [2026-07-07]
  The Popular Astronomy Club's curated links page connects visitors to a rich collection of astronomy resources, from NASA and Sky & Telescope to local observing groups like the Quad Cities Astronomical Society and Niabi Zoo monthly stargazing events. A helpful hub for amateur astronomers in the Midwest, it gathers tools for sky charts, ISS pass predictions, lunar atlases, dark sky advocacy, and more.
• Astronomy Notes [2026-07-07]
  Nick Strobel's comprehensive Astronomy Notes covers everything from the scientific method and history of astronomy to telescopes, planetary science, and Einstein's relativity, originally written for his introductory astronomy courses. The site has been widely copied across the web as a testament to its value, and a printed edition is available through Kendall Hunt for those who want a physical copy.
• Astronomy Notes [2026-07-07]
  Nick Strobel's Astronomy Notes is a comprehensive, free educational resource covering introductory astronomy topics from the scientific method and history of astronomy to planetary science, relativity, and telescopes. Originally created for college-level astronomy courses, the site has been widely copied across the web and is also available as a purchasable hardcopy book through Kendall Hunt.
• Astronomy Online [2026-07-07]
  Built by a legally blind photographer and astronomer, Astronomy Online is a comprehensive resource covering topics from astrophotography and the solar system to cosmology, astrobiology, and exoplanets. The site includes observation guides, a worksheet library for teachers, software recommendations, and an image gallery, making it a remarkable contribution from someone who created it despite a significant physical disability.
• Astronomy Picture of the Day Archive 2015 [2026-07-07]
  The legendary NASA Astronomy Picture of the Day archive is a comprehensive chronological index linking to thousands of daily astronomy images spanning from 1995 to the present, each accompanied by expert explanations written by professional astronomers. Featuring entries on nebulae, planets, eclipses, star clusters, and deep-sky objects, this archive is an endlessly explorable treasure trove for anyone fascinated by the cosmos.
• astronomy webring [2026-07-07]
  The Astronomy Webring, hosted by auroradynia, connects enthusiasts of astronomy, astrophotography, and astrophysics across the old web. Visitors can join the ring, browse the member list, or simply hop between sites dedicated to all things space.
• astronomyclub.org [2026-07-07]
  A curated links directory from an astronomy club, organizing resources into categories covering amateur astronomy groups across the southern US, national organizations, NASA resources, observatories, and telescoping guides. It serves as a handy launchpad for stargazers at any level, connecting visitors to everything from local star parties to Hubble gallery images.
• astronomyLINKS - astronomy and space directory, links, booksmarks and more. [2026-07-07]
  astronomyLINKS is a comprehensive curated directory of over 1000 astronomy and space-related links organized into categories like astrophotography, black holes, deep-sky objects, telescopes, and astronauts. Running since 2002, it serves as a one-stop portal for amateur and professional astronomers seeking resources, news, software, and community connections from around the world.
• ASTROPHOTO.COM HOME [2026-07-07]
  Tony and Daphne Hallas present their astrophotography and general photography work at this long-running site dedicated to capturing the night sky. The site appears to be a showcase of their astronomical and nature photography, though the current version shows minimal content and an unusual casino sponsorship note.
• Astrophotography and Image Processing Tips and Techniques by Jerry Lodriguss [2026-07-07]
  Jerry Lodriguss has spent nearly 50 years photographing the night sky, and AstroPix collects his expertise into a comprehensive resource covering everything from smartphone star trails to deep-sky nebulas and total solar eclipses. Visitors will find equipment reviews, image processing tutorials, observing guides, and stunning astrophotos of planets, comets, galaxies, and celestial events spanning decades of film and digital work.
• Astrophotography by Bob and Janice Fera [2026-07-07]
  Bob and Janice Fera share their passion for astrophotography on this dedicated site showcasing celestial images captured by the husband-and-wife team. Visitors can explore their collection of deep-sky and astronomical photographs, making it a compelling destination for amateur astronomy and night-sky imaging enthusiasts.
• Astrophotography for the Amateur [2026-07-07]
  The companion website to Michael A. Covington's book 'Astrophotography for the Amateur,' published by Cambridge University Press, covering film astrophotography, CCD imaging, and image processing. Visitors can browse a picture gallery of Covington's own astrophotos, download free astrophotography software, and find corrections and updates to the book.
• Astrophysical - Scientific popularization - Istituto Scientia [2026-07-07]
  Astrophysical.org is a scientific popularization site run by Istituto Scientia, covering astrophysics and astronomy with sections on stars, magnitude, an online planetarium, and the SAO star catalog. Visitors can explore topics from stellar spectral classification to cosmology, with links to companion site Astrometry.org for celestial mechanics content.
• Astrosystems home page [2026-07-07]
  AstroSystems is a Colorado-based manufacturer selling telescope kits, accessories, and components including their signature TeleKit truss tube Dobsonians, secondary mirrors, laser collimators, and digital setting circles. With worldwide shipping and a broad catalog spanning fast f/ratio optics to dew removal systems, this site is a go-to resource for amateur telescope makers and Dobsonian enthusiasts.
• Astroverde - Astronomers of Verde Valley - Amateur astronomy club in Northern Arizona [2026-07-07]
  Astroverde is the official website of the Astronomers of Verde Valley, an amateur astronomy club based in Northern Arizona's Verde Valley region. Visitors can browse member astrophotography galleries, find star party schedules, access observing tools, and learn how to join the club.
• Atlas coelestis [2026-07-07]
  Hosted by the Library of the Department of Astronomy in Bologna, this scholarly site guides visitors through a curated collection of historic celestial atlases spanning the 16th through 18th centuries, from Piccolomini's Renaissance star maps to Bode's Uranographia. Created by Davide Neri, a philosopher and physicist, it beautifully bridges the history of science and art through some of the most celebrated astronomical cartography ever published.
• AuroraWatch UK · AuroraWatch UK [2026-07-07]
  AuroraWatch UK is a free alert service run by scientists at Lancaster University's Space and Planetary Physics group, notifying users when the aurora borealis might be visible from the UK. The site offers real-time magnetogram plots, activity stackplots, a map, and multi-channel alerts via email, Twitter, Telegram, and more.
• Australian Amateur Astronomy - IceInSpace [2026-07-07]
  IceInSpace is the largest online amateur astronomy community in the Southern Hemisphere, serving over 20,000 registered members across Australia, New Zealand, and South America. The site features astronomy forums, equipment reviews, DIY projects, astrophotography galleries, event reports, and an astronomy glossary tailored to southern hemisphere observers.
• AutoStakkert! – AutoStakkert!4 Stacking Software – Lucky Imaging with an Edge – Emil Kraaikamp – AS!2, AS!3, AS!4 [2026-07-07]
  AutoStakkert! is free lucky imaging software created by Emil Kraaikamp for automatically analyzing, aligning, and stacking planetary and solar images captured through a telescope via high-speed video. The site offers downloads of multiple software versions (AS!2 through AS!4), sample images of Jupiter, Mars, and the Moon, and guides demonstrating how the stacking algorithm dramatically sharpens noisy astrophotography footage.
• BAA Comet section [2026-07-07]
  The British Astronomical Association Comet Section is a dedicated resource for tracking newly discovered comets, periodic comets, and observational reports from contributors worldwide. Maintained by director Nick James and visual observations coordinator Jonathan Shanklin, the site features comet ephemerides, discovery news, observing guides, and an archive of the newsletter 'The Comet's Tale'.
• Barnard-Seyfert Astronomical Society - Nashville, Tennessee [2026-07-07]
  The Barnard-Seyfert Astronomical Society (BSAS) is a Nashville, Tennessee astronomy club that hosts regular public star parties, member meetings, and educational events at local parks and nature centers. Visitors can find event schedules, membership information, a member-produced wall calendar featuring astrophotography, and resources for amateur astronomers including discounted access to the Observer's Handbook.
• bas-astro.com [2026-07-07]
  BAS Astro appears to be an astronomy club or society website, with the domain name strongly suggesting a regional or local astronomical association. The site likely serves as a hub for amateur astronomers to share observations, events, and resources.
• BBAA | Home [2026-07-07]
  The Back Bay Amateur Astronomers (BBAA) is a non-profit astronomy club serving the Hampton Roads, Virginia area, dedicated to public outreach and bringing stargazing to the community since 1978. The site offers event calendars, observing programs, a photo gallery, telescope donation info, scholarships, and archives of newsletters and eclipse coverage.
• BCAS|Home [2026-07-07]
  The Black Canyon Astronomical Society (BCAS) is an amateur astronomy club serving Western Colorado, offering public meetings, star parties, dark sky preservation efforts, and outreach programs to schools and community groups. The site features a calendar of events, astrophotography gallery, observing highlights, and information on joining the Astronomical League.
• Berfield.com – amateur astronomy, video games, profressional and family information for Scott Berfield [2026-07-07]
  Scott Berfield's personal homepage covers his passion for amateur astronomy and CCD imaging alongside video game production and family history for the West Coast Berfields. The astronomy and CCD content takes top billing in the meta description and keywords, making it the site's defining draw for stargazers and hobbyist imagers.
• Berks County Amateur Astronomical Society [2026-07-07]
  The Berks County Amateur Astronomical Society (BCAAS) is a Pennsylvania-based astronomy club hosting monthly meetings, star parties, and online AstroHangouts via Zoom for space enthusiasts. The site features clear sky clocks for local observing sites including Pulpit Rock Astronomical Park and Carpenter Observatory, plus a club newsletter called Pegasus.
• Bill Snyder Astrophotography [2026-07-07]
  Bill Snyder's astrophotography site showcases an extensive gallery of deep-sky images including nebulae, galaxies, and star clusters captured from his personal and shared observatories in Pennsylvania. The collection includes several NASA Astronomy Picture of the Day (APOD) winners and is organized into detailed categories covering narrowband, RGB, and HaRGB imaging techniques.
• BinoSky [2026-07-07]
  A guide to astronomy with binoculars.: BinoSky, created by Benjamin Crowell, is a comprehensive guide to stargazing with binoculars, organizing the best celestial objects to observe by region of sky and season. Visitors will find detailed entries on open clusters, globular clusters, nebulae, and galaxies visible through binoculars, complete with sky maps and a data table compiled by SEDS contributor Hartmut Frommert.
• Blackbird Observatory and Instruments [2026-07-07]
  R. Jay GaBany's Blackbird Observatory page details the technical setup behind his acclaimed astrophotography work, including a half-meter Ritchey-Chretien telescope, professional CCD cameras, and two remote observatory locations in New Mexico and the California Sierra Nevada. The site is a fascinating window into serious amateur deep-sky imaging, covering instrumentation, elevation advantages, and the evolution of the observatory from 2005 through 2014.
• Bluegrass Amateur Astronomy Club - Bluegrass Astronomy Club, Lexington KY - Home [2026-07-07]
  The Bluegrass Amateur Astronomy Club is a community astronomy group based in Lexington, Kentucky, that holds monthly meetings and stargazing sessions at Raven Run Nature Sanctuary from March through November. The site offers club news, a beginner's section, a photo gallery, and sky charts for local observers, welcoming families and newcomers to the hobby.
• bortle dark sky scale [2026-07-07]
  A detailed reference page explaining the Bortle Dark Sky Scale, which measures night sky light pollution across nine categories from inner-city skies to pristine darkness. The site includes an adapted table of Bortle's indicators with color codes used in light pollution maps, plus five star charts covering key sky areas visible from the continental United States.
• Brian Koberlein [2026-07-07]
  Brian Koberlein is an astrophysicist and author who writes accessible, research-based blog posts covering topics like black holes, dark matter, solar flares, and planetary formation. The site serves as a hub for his ongoing science communication work, with an archive of posts and a newsletter for readers who want regular cosmic updates.
• Bright Supernova [2026-07-07]
  Bright Supernova, maintained by David Bishop, is a dedicated tracking resource for bright supernovae observations and images. This redirect page points to a larger archive at RochesterAstronomy.org, suggesting a substantial collection of supernova data and imagery for amateur and professional astronomers alike.
• C/2006 P1 (McNaught) [2026-07-07]
  Gary W. Kronk's Cometography provides a detailed scientific profile of Comet C/2006 P1 (McNaught), covering its discovery, orbital calculations, and observer reports from around the world. The page includes historical highlights of the comet's brightness predictions, perihelion data, and observation logs with magnitudes and coma measurements, along with photographs taken at Paranal Observatory.
• C14 Is Awesome! [2026-07-07]
  Stephen Saber, an amateur astronomer, shares deep-sky observing lists, lunar phenomena like Saber's Beads, and stargazing tips on this enthusiast blog. Catalogued targets from the Messier, Caldwell, RASC, and Herschel 400 lists make it a practical resource for marathon observers hunting NGC objects.
• C2A - Planetarium Software [2026-07-07]
  C2A is a feature-rich planetarium software created by Philippe Deverchere, designed for both amateur and professional astronomers who need precise astrometric and photometric capabilities. The site documents the software's extensive support for star catalogues including Hipparcos, Tycho-2, and UCAC4, as well as deep sky object catalogues, asteroid and comet tracking, and tools for predicting occultations and sunrise/sunset times.
• Canada - 1972 July 10 Total Solar Eclipse - Interactive Google Map - Xavier Jubier [2026-07-07]
  Xavier Jubier's interactive Google Map documents the path of the July 10, 1972 total solar eclipse over Canada, offering precise geographic visualization of the totality corridor. Part of a larger solar eclipse resource site by Jubier, this page is a valuable reference for eclipse chasers and astronomy enthusiasts researching historical eclipse paths.
• Canadian Astronomy Data Centre [2026-07-07]
  The Canadian Astronomy Data Centre (CADC) is an official Government of Canada research facility that archives and provides access to astronomical data for scientists and researchers. Hosted by the National Research Council of Canada, it serves as a centralized repository for observational astronomy data collections.
• Capella Observatory [2026-07-07]
  Capella Observatory documents an amateur astronomical observatory situated atop the Kupferberg in Namibia, near Windhoek, offering a rare southern-hemisphere observing perspective. The site features astrophotography and deep sky observations including nebulae, globular clusters, and open star clusters captured with a 60cm telescope.
• CAS Online [2026-07-07]
  The Calumet Astronomical Society (CAS) maintains this site for their Indiana-based astronomy club, featuring information about the Conway Observatory, a monthly star chart, open house schedules, and meeting details at the Munster Library. Members and stargazers can find membership applications, donation options, and a photo gallery documenting the club's history and activities.
• Cataclysmic Variable Stars [2026-07-07]
  Modern Astronomy in Motion: A detailed educational presentation on cataclysmic variable stars (CVs), covering binary star systems, accretion disks, novae, polars, and outburst phenomena with artist renditions and real observational data. Created by Jeff B. and hosted on Wolfram Research servers, the site features light curves, spectra, and telescope images from Lowell Observatory's 31-inch NURO telescope.
• Cataloghi di galassie [2026-07-07]
  An extensive galaxy catalog reference compiled by the Circolo Astrofili Talmassons (C.AS.T.), an Italian astronomy club, featuring member-photographed images organized across major catalogs including NGC, UGC, IC, PGC, Messier, and VCC. The site covers thousands of galaxies alongside deep sky objects, quasars, and galaxy clusters, making it a remarkable visual archive built collaboratively since 1996.
• catawbasky.org - The Catawba Valley Astronomy Club [2026-07-07]
  The Catawba Valley Astronomy Club (CVAC) has been bringing amateur astronomy to North Carolina's Catawba Valley for 50 years, operating the Lucile Miller Observatory and hosting public stargazing events at parks, schools, and local venues. The site serves as the club's hub for event schedules, membership applications, officer listings, and clear sky charts for observers in the region.
• CBA – Center for Backyard Astrophysics [2026-07-07]
  The Center for Backyard Astrophysics (CBA) is a global citizen-science network of amateur astronomers using small telescopes to conduct photometric studies of cataclysmic variable stars. The site hosts science results, publications, data submission guidelines, observer resources, and a worldwide station map connecting contributors from Belgium to Indiana.
• Celestial Wonders - Astrophotography by Frank Barrett [2026-07-07]
  Frank Barrett's Celestial Wonders showcases an extensive collection of astrophotography spanning nebulae, galaxies, star clusters, solar system objects, and H-alpha imagery. With galleries organized by subject, a slideshow feature, and even an online store, this is a richly detailed labor of love for deep-sky and planetary imaging enthusiasts.
• CelesTrak [2026-07-07]
  CelesTrak, maintained by T.S. Kelso, is a premier resource for satellite tracking data including NORAD GP element sets, two-line element (TLE) files, and orbital environment tools used by the global space community. Now operating as a 501(c)(3) non-profit, it offers visualization tools, SOCRATES conjunction analysis, documentation, and special event coverage including debris events and rocket body reentries.
• Central Appalachain Astronomy Club [2026-07-07]
  The Central Appalachian Astronomy Club is a 501(c)(3) non-profit based in West Virginia dedicated to promoting amateur astronomy and partnering with local schools and universities. Visitors can learn about the club's 20-foot Ash Dome observatory housing a 16-inch Meade LX200 telescope, upcoming meetings and events, and how to join.
• Central Bureau for Astronomical Telegrams [2026-07-07]
  The Central Bureau for Astronomical Telegrams (CBAT), hosted at Harvard University since 1966, is the official IAU clearinghouse for announcing new astronomical discoveries including comets, novae, supernovae, and other transient celestial events. Visitors can browse online IAU Circulars, subscribe to discovery feeds, explore lists of supernovae and comets, and learn how to submit their own astronomical observations.
• Central Valley Astronomers [2026-07-07]
  The Central Valley Astronomers is an amateur astronomy club based in Fresno, California, welcoming everyone from beginners to seasoned professionals with star parties, astrophotography, and educational meetings. The site includes a club calendar, membership info, a Young Astronomer Program, star party etiquette guides, light pollution resources, and tips on purchasing equipment.
• CLAS - China Lake Astronomical Society [2026-07-07]
  The China Lake Astronomical Society (CLAS) is a community astronomy club based in Ridgecrest, California, taking advantage of some of the darkest skies in the United States near Death Valley. The site offers information on monthly meetings, star parties at their dark sky site on Brown Road, newsletters, and membership for skywatchers in the Indian Wells Valley.
• Clavius Moon Base - debunking the moon hoax [2026-07-07]
  Moon Base Clavius is a thorough, well-organized resource dedicated to debunking Apollo moon landing conspiracy theories, drawing on contributions from both amateurs and professionals. Visitors will find detailed analyses of Apollo photographs, environmental conditions, technology, space vehicles, and the logical fallacies underpinning hoax claims.
• Colors of Alien Plants [2026-07-07]
  A scientifically grounded resource that predicts the colors of photosynthesizing plants on alien worlds, modeling how different star types and atmospheric pressures would shape the evolution of plant pigmentation. Featuring nearly 100 generated color swatches across spectral classes from A0 to M8, it draws on real peer-reviewed research to help worldbuilders, astrobiologists, and science enthusiasts imagine life beyond Earth.
• Colors of Alien Skies [2026-07-07]
  A scientifically detailed simulation gallery showing what alien skies would look like on Earth-like worlds orbiting different types of stars, with varying atmospheric pressures and compositions. Each entry features rendered color visualizations depicting sky color at different sun angles, making this a visually rich and technically rigorous reference for astronomy and worldbuilding enthusiasts alike.
• Comet Chasing [2026-07-07]
  Comet Chasing, maintained by Skyhound, provides monthly up-to-date observing guides for telescopic comets visible this month, complete with finder charts, observing synopses, and brightness predictions tailored to your latitude and equipment. It covers current comets like Kreutz sungrazers and PANSTARRS discoveries, making it an invaluable tool for amateur astronomers who want to hunt comets visually or through imaging.
• Cometography [2026-07-07]
  Cometography.com is a scholarly reference site originally built by Gary W. Kronk, companion to his six-volume Cambridge University Press book series, offering in-depth historical data on periodic and notable comets throughout history. Now maintained by José J. Chambó, the site preserves and expands Kronk's decades of comet research for astronomers and enthusiasts alike.
• Company Seven | Astro-Optics Index Page [2026-07-07]
  Company Seven is a long-established astro-optics retailer and resource hub based in Laurel, Maryland, serving both amateur and professional astronomers with telescopes, binoculars, rare optical instruments, and expert consultation. Notable for its involvement with NASA missions including the Hubble Space Telescope Repair and the James Webb Space Telescope, this site blends a brick-and-mortar showroom presence with a deep online resource for the astronomy community.
• Constellation families [2026-07-07]
  Hosted on the SEDS (Students for the Exploration and Development of Space) server, this reference page catalogs the traditional constellation families of the night sky, grouping constellations like the Ursa Major family, the Zodiac, and the La Caille southern sky instruments. Each constellation entry links to deeper information, making it a useful guide for amateur stargazers learning to navigate the celestial sphere.
• COSMIC ANCESTRY [2026-07-07]
  Panspermia's evidence and implications.: Cosmic Ancestry is a deep-dive scientific resource exploring the theory of panspermia, arguing that life on Earth originated from space and that all evolutionary innovation depends on genetic material of cosmic origin. The site covers astrobiology, comets as delivery systems, interstellar dust, the work of Fred Hoyle and Chandra Wickramasinghe, and presents extensive evidence comparing Darwinism with the Cosmic Ancestry hypothesis.
• Cosmology Calculators [2026-07-07]
  Hosted by NASA's Extragalactic Database (NED) at Caltech, this curated page collects links to online cosmology calculators contributed by researchers at UCLA, University of Colorado, and other institutions. Visitors can compute distances, lookback times, Hubble parameters, K-corrections, and other key cosmological quantities by entering values like redshift, Hubble constant, and Omega parameters.
• COSMOS - The SAO Encyclopedia of Astronomy | COSMOS [2026-07-07]
  COSMOS is a comprehensive astronomy encyclopedia produced by research astronomers at Swinburne University's Centre for Astrophysics and Supercomputing, covering topics from the Planck Length to galaxies for a general but detail-hungry audience. The encyclopedia is an evolving reference used by major astronomy outlets including Universe Today, Astronomy Cast, and Astronomy Picture of the Day, making it a trusted hub for astronomical knowledge.
• Cosmotography- CCD images of the heavens. [2026-07-07]
  Cosmotography is the astrophotography showcase of R. Jay Gabany, a 2010 AAS Chambliss Amateur Achievement Award recipient who captures stunning CCD images of galaxies, nebulae, star clusters, and more using high-end telescopes across multiple observatories worldwide. The gallery features meticulously processed multi-exposure color images taken through remotely controlled observatories in California, Kitt Peak Arizona, and Melbourne Australia, making it a remarkable window into deep-sky imaging at the amateur-professional frontier.
• Cumberland Astronomical Society [2026-07-07]
  The Cumberland Astronomical Society is an amateur astronomy club based in Gallatin, Tennessee, dedicated to bringing astronomy to the general public. The club hosts monthly events at local schools, libraries, and parks, though this Tripod page now redirects visitors to their updated website at CumberlandAstronomicalSociety.org.
• Dan's Pier Top Plates [2026-07-07]
  Dan's Pier Top Plates is a small business site selling custom mounting hardware for backyard telescopes, including pier top plate systems, DIY telescope enclosures, and adapters for metal piers. Hobbyist astronomers looking to build a permanent concrete or metal telescope pier for a home observatory will find products, FAQs, and installation guides here.
• Deep Impact [2026-07-07]
  Your First Look Inside a Comet!: The official University of Maryland archive for NASA's Deep Impact mission, which sent a spacecraft to collide with comet Tempel 1 in 2005 and later extended its mission as EPOXI to observe comet Hartley 2 and distant exoplanets. The site preserves science results, image and video galleries, team member profiles, and mission history through the spacecraft's final loss of contact in 2013.
• Deep Sky Astrophotography – Jordi Gallego [2026-07-07]
  Jordi Gallego's deep sky astrophotography site showcases stunning images captured since 2008 from his private Fosca Nit Observatory in Àger, Spain, one of southern Europe's darkest sky locations. The site combines aesthetic long-integration imaging with technical depth, including full equipment and processing notes per image, plus a dedicated section for exoplanet transit photometry observations.
• Deep Sky Objects [2026-07-07]
  Concordiem Borealis: Stephen Saber's Concordiem Borealis is a carefully curated observing list of 400+ deep sky objects and double stars for northern hemisphere astronomers, unifying targets from the Astronomical League's Messier, Caldwell, Bino Deepsky, and Double Star programs with the RASC's Finest NGC Objects. Organized by constellation with magnitude, coordinates, and Pocket Sky Atlas chart references, it serves as a practical field companion for observers working through official observing programs.
• Deep Sky Photography [2026-07-07]
  Astrophotography by George Greaney: George Greaney's dedicated astrophotography site showcases deep sky astronomical images captured using both CCD and film techniques from his Ash Meadows Observatory in Nevada. Visitors can explore galleries of images taken with a Ritchey-Chretien 14.5-inch telescope, along with detailed sections on equipment, image processing software, and darkroom techniques for enhanced color astrophotography.
• Deep-Sky.Org - Deep-Sky Quiz [2026-07-07]
  Deep-Sky.Org hosts an interactive quiz testing visitors' knowledge of deep-sky objects such as nebulae, galaxies, and star clusters. The multiple-choice format makes it a handy study tool for amateur astronomers looking to sharpen their observational knowledge.
• DeepSkyStacker - Free [2026-07-07]
  DeepSkyStacker is a free software tool designed for astrophotographers who want to stack and process deep-sky images to reveal faint celestial objects. The site offers downloads, screenshots, a user manual, FAQ, technical details, and tutorials for getting the most out of the application.
• Delmarva Stargazer Society | Viewing the heavens and promoting interest in astronomy. [2026-07-07]
  The Delmarva Stargazer Society was an amateur astronomy club founded in 1993 on the Delmarva Peninsula that ran star parties at three dedicated dark sky sites until disbanding in 2019. This archived site preserves the club's history, newsletters, by-laws, and meeting minutes, and is maintained by member Michael Lecuyer who still brings telescopes out for public viewing in Wyoming, Delaware.
• Designing and building a Newtonian Telescope [2026-07-07]
  Ben Davies documents the design and construction of a 12.5-inch Newtonian telescope, covering everything from the equatorial horseshoe mount and mirror flotation cell to motorized collimation and CCD imaging. The site also includes observational work on variable stars, nebulae, galaxies, and spectroscopy, making it a rich resource for serious amateur telescope makers.
• Digital Images of the Sky - Gallery for Astrophotography [2026-07-07]
  Created by Till Credner and Sven Kohle, AllTheSky.com is a stunning astrophotography gallery spanning comets, nebulae, galaxies, constellations, aurora borealis, and atmospheric phenomena. The site offers an impressive breadth of celestial imagery including nightscapes, 360-degree views, live all-sky feeds, and articles that make it a rich destination for astronomy enthusiasts.
• Double star list [2026-07-07]
  A detailed double star catalog organized by constellation, compiled by the Belmont Society, listing star pairs with their right ascension, declination, separation, and color descriptions. The catalog is notable for its emphasis on the visible colors of stars, with evocative notes on hues like yellow, blue, orange, and even elusive green, making it a useful observing reference for amateur astronomers.
• drisc.io [2026-07-07]
  Drisc.io is a personal blog and journal by a tech-minded creator who covers topics ranging from space exploration (KSC visits, Crew-12) to Apple ecosystem projects like iPadtop setups and a menu bar app called Peak Streak. The mix of journal entries, blog posts, and a wiki makes it a compact but genuine slice of one person's geeky interests and creative projects.
• Eclipse Chasers [2026-07-07]
  Eclipse Chasers is a dedicated hub for anyone passionate about witnessing total solar eclipses, offering photography tips, safety guides, solar eclipse maps, and an interactive worldwide log where visitors can record and share their own eclipse observations. The site combines practical tools like online calculators with educational content and links to authoritative references, making it a solid starting point for both newcomers and seasoned eclipse travelers.
• EclipseChaser Home Page [2026-07-07]
  Jeffrey R. Charles runs this comprehensive resource dedicated to total solar eclipses, featuring expedition journals, astrophotography galleries, equipment guides, and umbral data from eclipses dating back to 1979. Winner of the Griffith Observatory Star Award, the site covers everything from eclipse chasing expeditions to optics and accessible telescope guides.
• Ed's Pictures Page [2026-07-07]
  Ed Morana's personal astronomy photo and video archive documents rare celestial events including total solar eclipses, Venus and Mercury transits, ISS transits, asteroid occultations, and the Northern Lights. The collection spans events from 2006 through 2024, with time-lapse composites and an Android app for ISS transit prediction making it a genuinely useful resource for amateur astronomers.
• en:start [Skychart] [2026-07-07]
  Skychart, also known as Cartes du Ciel, is a free open-source planetarium program that lets users draw detailed sky charts using star and nebula catalogs while also displaying the positions of planets, asteroids, and comets. This multilingual wiki serves as the official documentation and download hub for the software, supporting Linux, Windows, and macOS with both stable and beta releases.
• en:start [Virtual Moon Atlas Version 9.0] [2026-07-07]
  Virtual Moon Atlas (VMA) is a free, feature-rich lunar observation and study program for Windows and Linux, now in its ninth major version after over two decades of development. Downloaded nearly 2 million times worldwide, it has been used by the European Space Agency, CNRS research professors, and even to help prepare the Chandrayaan 1 lunar mission.
• Encyclopaedia of exoplanetary systems [2026-07-07]
  The Encyclopaedia of Exoplanetary Systems, maintained by a dedicated research team since 1995, catalogs over 8,000 confirmed extrasolar objects with filtering, sorting, and export tools for professional and amateur astronomers alike. Visitors can explore databases on binary star systems and circumstellar disks, generate online plots, view planetary systems in 3D and even virtual reality, and browse an exhaustive bibliography of exoplanet discoveries.
• Encyclopedia Astronautica [2026-07-07]
  Encyclopedia Astronautica is a massive reference work by Mark Wade covering the complete history of human spaceflight, with over 79,000 pages on rockets, spacecraft, astronauts, cosmonauts, launch sites, and engines from every spacefaring nation. Spanning Soviet secret programs to cancelled American spacecraft, it is one of the most comprehensive space history archives ever assembled on the web.
• European Association for Astronomy Education [2026-07-07]
  The European Association for Astronomy Education (EAAE) maintains this blog to share the latest astronomical discoveries and news, covering topics like black holes, supernovae, and planetary science. It also promotes educational initiatives such as the annual 'Catch a Star' contest, which encourages young students across Europe to engage with astronomy research.
• Exoplanet Orbit Database | Exoplanet Data Explorer [2026-07-07]
  The Exoplanet Orbit Database at exoplanets.org is a scientific reference cataloging confirmed exoplanets with detailed orbital data, maintained by researchers affiliated with the California Planet Survey. Visitors can explore interactive data tables and plots, search the full database of confirmed planets and Kepler candidates, and read methodology documentation covering the team's approach to curating high-quality planetary orbits.
• Finnish amateur astronomy homepage [2026-07-07]
  Hosted on the Finnish University and Research Network (FUNET), this is the national homepage for amateur astronomy in Finland, maintained by members of the Ursa Astronomical Association. It organizes links to Finnish astronomical clubs, research institutions, schools, planetaria, publications, and observation resources, reflecting a country with one of the highest per-capita rates of amateur astronomers in the world.
• Fleming Astrophotography [2026-07-07]
  Neil Fleming's astrophotography showcase specializes in deep-sky imaging using the Meade DSI CCD camera, capturing galaxies, nebulae, and star clusters. The site highlights work done with high-end equipment including an NP-127 refractor and NJP mount, making it a compelling destination for amateur astronomers interested in CCD imaging techniques.
• Flint River Astronomy Club – Your gateway to the stars [2026-07-07]
  The Flint River Astronomy Club (FRAC) is a Georgia-based astronomy club serving the Griffin area, hosting monthly meetings, public observing events at Indian Springs State Park, and club observing weekends at Joe Kurz WMA. Members have access to observing lists, tools, national awards, newsletters, and articles, making this a well-rounded hub for amateur astronomers in the region.
• FMO Project | SPACEWATCH® [2026-07-07]
  The SPACEWATCH® FMO Project, run by the University of Arizona's Lunar and Planetary Laboratory, documents the detection of Fast Moving Objects, which are near-Earth asteroids passing so close that they appear as light trails in telescope imagery. The site explains the science behind close-approach asteroid detection, shares discovery images, and describes the citizen participation program that once helped identify faint FMOs.
• Fourmilab [2026-07-07]
  Fourmilab is John Walker's legendary personal science and technology site, home to a vast collection of interactive tools, essays, and experiments spanning astronomy, physics, computing, and more. Notable features include real-time Earth and Moon viewers, historical documents, and decades of original technical writing that have made it a classic destination on the web.
• Fred's Airshow Journal [2026-07-07]
  Photos of the historic SpaceShipOne launch: Fred Bruenjes documents his firsthand experience photographing the historic June 21, 2004 launch of SpaceShipOne, the first privately funded spacecraft to reach space, at Mojave Airport. The site is part of a larger airshow journal covering dozens of air shows across California and beyond, featuring hundreds of original photos from events ranging from Miramar to Oshkosh.
• Free Astronomy Magazine - Astro Publishing [2026-07-07]
  Astro Publishing offers a free multilingual astronomy magazine available to read and download in full, with a mission to bring astronomy culture to the widest possible audience. All issues can be accessed directly from the site, which is notable for its strict no-tracking, no-cookie privacy policy.
• From Stargazers to Starships [2026-07-07]
  Created by Dr. David P. Stern, 'From Stargazers to Starships' is a comprehensive web-based textbook covering astronomy, Newtonian mechanics, the Sun, and spaceflight at a high school level. The site includes glossaries, timelines, Q&A sections, lesson plans, and supplementary materials for educators, making it a rich self-contained learning resource with a strong historical perspective.
• Future Timeline of the Universe | Timeline | Technology | Singularity | 2020 | 2050 | 2100 | 2150 | 2200 | 21st century | 22nd century | Far Future | Humanity | Predictions | Events [2026-07-07]
  FutureTimeline.net is an ambitious speculative reference site that maps out predictions for humanity and the universe across centuries, millennia, and beyond, covering topics from AI and nanotechnology to the far future of the cosmos. Organized as a detailed chronological timeline with supporting blogs, data trends, and artwork, it offers a sweeping vision of where science and civilization may be headed.
• Gothos [2026-07-07]
  Astronomy: Jillian's Guide to Black Holes: Jillian's Guide to Black Holes is an informal yet thorough educational resource originally written as a university physics project at Syracuse University, covering black hole formation, classifications, accretion disks, Hawking radiation, wormholes, and how to locate black holes across the universe. Written by Jillian in an approachable, conversational style, it stands out for its careful citations, multilingual reach (including a Basque translation), and years of ongoing updates beyond its academic origins.
• Grasslands Observatory [2026-07-07]
  The Grasslands Observatory, owned by Tim Hunter and directed by James McGaha, is a working astronomical observatory in operation since 1985 that offers an extensive image gallery covering Messier objects, Arp galaxies, Barnard objects, Caldwell objects, comets, asteroids, and more. With decades of astrophotography, essays on getting started in amateur astronomy, and remote telescope operations, this site is a rich resource for serious backyard astronomers.
• Greensboro Astronomy Club - Astronomy Club, Telescopes, Stargazing [2026-07-07]
  The Greensboro Astronomy Club is a North Carolina-based group dedicated to making astronomy accessible to the public through regular meetings, observing sessions, and educational events. The site highlights upcoming meetings at venues like the Greensboro Science Center, member achievements, and the club's advocacy for preserving astronomy programs at local universities.
• Hawaiian Astronomical Society (HAS) [2026-07-07]
  The Hawaiian Astronomical Society, founded in 1949, is a non-profit club dedicated to promoting amateur astronomy across the Hawaiian Islands, hosting regular public and members-only star parties at locations like Dillingham Airfield, Kahala Community Park, and Geiger Community Park. The site features event schedules, a deep-sky atlas, an astronomy newsletter, school star party programs, and live solar and lunar data feeds.
• Hawaiian Astronomical Society (HAS) [2026-07-07]
  The Hawaiian Astronomical Society, founded in 1949, is a nonprofit dedicated to promoting amateur astronomy across Hawaii through monthly public star parties, school outreach, and members-only dark sky observing sessions. The site features a deep sky atlas, an astronomy newsletter, event schedules, and live solar imagery from SDO, making it a rich hub for stargazers in the islands.
• Heavens-Above [2026-07-07]
  Heavens-Above, developed by Chris Peat, provides real-time satellite tracking and pass predictions customized to your exact location, covering the ISS, Starlink, Hubble, and hundreds of other spacecraft. Beyond satellites, the site offers interactive sky charts, solar eclipse data, comet and asteroid tracking, and deep space mission information, making it an essential tool for backyard astronomers and satellite spotters alike.
• Heavens-Above [2026-07-07]
  Heavens-Above, developed by Chris Peat, provides real-time satellite tracking and customized astronomical predictions based on your geographic location, including ISS passes, Starlink visibility, and deep space mission data. The site also offers interactive sky charts, solar eclipse information, comet and asteroid tracking, and a full satellite database spanning dozens of spacecraft.
• Hermit Eclipse [2026-07-07]
  Hermit Eclipse, created by Ian Cameron Smith, is a comprehensive reference site dedicated to solar and lunar eclipses, featuring searchable catalogs, prediction data, observing guides, and eclipse science explanations. Built on the legendary data of Fred Espenak (NASA's Mr. Eclipse), it covers upcoming eclipses worldwide with regional visibility guides, eye safety tips, and a full historical eclipse database.
• History of Astronomy [2026-07-07]
  Gene Smith of UC San Diego's Center for Astrophysics and Space Sciences presents a detailed tutorial on the history of astronomy, tracing human observation of the skies from Stonehenge and ancient agrarian cultures through Pythagoras, Aristotle, Aristarchus, Copernicus, Kepler, and Galileo. Rich with links to related topics like archaeoastronomy, eclipse prediction, and the Music of the Spheres, this page is part of a broader astronomy education series hosted by UCSD.
• Hitchhiker's Moon Links [2026-07-07]
  A comprehensive curated link collection for amateur lunar observers, gathering moon maps, photographic atlases, observing guides, and software tools from across the early web. Part of the broader Hitchhiker's Guide to the Moon project at Shallow Sky, it serves as an invaluable jumping-off point for anyone wanting to study the moon's features in depth.
• Home [2026-07-07]
  Cedar Amateur Astronomers (CAA) is an astronomy club based in the Cedar Rapids, Iowa area, hosting regular public programs, monthly business meetings, and stargazing events at their Pal-Dows Observatory. The site provides event schedules, Zoom recording links for past programs, a clear sky chart, and resources through affiliations with the Astronomical League and the Night Sky Network.
• Home [2026-07-07]
  Bob Riddle's 'Qué tal in the Current Skies' is a long-running amateur astronomy site that began in the late 1980s as posts to the Big Sky Telegraph BBS and evolved over 30+ years into a web resource covering Earth and Space topics. The site now serves as a transitional landing page pointing visitors to his continuing work on Substack, with archived daytime and nighttime sky photos, calendar data, and astronomical observations.
• Home [2026-07-07]
  The Fort Worth Astronomical Society (FWAS) has been bringing amateur astronomy to North Texas since 1949, making it one of the oldest and largest such clubs in the country with over 200 active members. Visitors can find information on membership, club meetings, dark sky observing sites, star parties, and public outreach events conducted for local schools and organizations.
• HOME [2026-07-07]
  The Roanoke Valley Astronomical Society (RVAS) is a Virginia-based astronomy club offering monthly meetings, observing sessions, newsletters, and astrophotography resources for members. The site includes clear sky charts, a DSO of the month feature, member pages, and meeting announcements with guest speakers covering topics like astrophotography techniques.
• Home - Amateur Telescope Makers of Boston [2026-07-07]
  The Amateur Telescope Makers of Boston (ATMoB) is a 501(c)3 nonprofit astronomy club that meets monthly at the Harvard-Smithsonian Center for Astrophysics, welcoming the public to join in observing, telescope making, and outreach events. The site offers club history, star party schedules, a clubhouse sky-conditions monitor, photo albums, and resources for getting started in amateur astronomy.
• Home - Central Texas Astronomical Society [2026-07-07]
  The Central Texas Astronomical Society operates Meyer Observatory and the Turner Research Station near Clifton, Texas, hosting public open houses and member star parties with large-aperture telescopes. Their mission spans stargazing outreach, astrophotography, astronomy education, and research for both newcomers and experienced observers in the Central Texas region.
• Home - Delaware Valley Amateur Astronomers [2026-07-07]
  The Delaware Valley Amateur Astronomers (DVAA) is a club serving astronomy enthusiasts in the Philadelphia region, offering star parties, loaner equipment, observing site guides, and an expert Q&A forum for beginners and seasoned stargazers alike. The site features astrophotography resources, member image galleries, outreach event coverage, and a newsletter, making it a rich hub for amateur astronomy in the area.
• HOME - SkyMarvels.com [2026-07-07]
  SkyMarvels is an astronomy education site that guides visitors through the night sky and solar system using interactive animations, videos, and the free 3-D simulation software Celestia. Covering everything from individual planets and moons to deep-sky objects and the scale of the cosmos, the site offers a genuinely immersive experience suitable for beginners and enthusiasts alike.
• Home | Bob's Knobs [2026-07-07]
  Bob's Knobs sells specialized collimation thumbscrews that let telescope owners align their Cassegrain and Newtonian telescopes without any tools. The product line covers knobs for popular telescope brands including Losmandy, Celestron, and TeleVue mounts, with custom sizing options and downloadable installation guides.
• Home | SF Bay Area Astronomy Connection [2026-07-07]
  The SF Bay Area Astronomy Connection (TAC) is an informal network for amateur astronomers across the greater San Francisco Bay Area, connecting observers without the formality of dues, officers, or bylaws. The site features an extensive list of observing sites throughout the region, curated observing lists, equipment guides, and resources for both beginners and seasoned stargazers.
• Home of the Riverside Astronomical Society, the best astronomy club in Southern California | RAS [2026-07-07]
  The Riverside Astronomical Society (RAS) has been serving Southern California astronomy enthusiasts since 1957, offering star parties, public outreach, monthly meetings with professional astronomers, and access to their dark sky site GMARS in Landers, CA. The site features event calendars, member resources, sky cameras, weather data, and information about their annual Nightfall star party event.
• Home Page [2026-07-07]
  The Woman Astronomer is a dedicated resource celebrating women in astronomy, featuring interviews with professionals like planet-hunter Dr. Debra Fischer, historical profiles of pioneering figures like Antonia Maury, and student essays submitted through its Cosmic Campus section. Visitors can also find job listings for astronomers, a free ezine, and links to related resources, making it a rich hub for anyone interested in women's contributions to the field.
• Home Page - The ATM's Workshop [2026-07-07]
  John D. Upton's comprehensive resource for amateur telescope makers (ATMs) covers tips, techniques, and projects spanning optics grinding, metalworking, woodworking, electronics, and astrophotography. Built over two decades of hands-on experience, the site documents the rewarding crossover hobby of crafting your own telescopes and specialized astronomy accessories from scratch.
• Home Page | Amateur CCD Astronomy [2026-07-07]
  Richard D. Jacobs, M.D. shares his CCD astrophotography captured from his backyard in Chandler, Arizona, showcasing diffuse nebulae, galaxies, star clusters, planetary nebulae, and solar system objects despite significant light pollution. The site also covers the technical side of amateur CCD imaging including astrometry, spectroscopy, and photometry, making it a useful resource for urban amateur astronomers.
• Home page of the 2.0m Liverpool Telescope, containing technical guidance on applying for and using LT observing time, accessing data and news from the observatory. [2026-07-07]
  The official homepage of the Liverpool Telescope, a 2.0 metre fully robotic observatory on the Canary Island of La Palma, owned and operated by Liverpool John Moores University. Visitors can find technical guidance on applying for observing time, access data archives, browse recent astronomical discoveries, and follow live telescope status updates.
• Homepage < GAAC [2026-07-07]
  The Gloucester Area Astronomy Club (GAAC) is a casual, no-dues astronomy group founded in 2003 that meets monthly at the Lanesville Community Center in Gloucester, Massachusetts. The site features member photo galleries, ephemerides, aurora alerts, object rise/set times, and a calendar of events for anyone curious about the night sky.
• How many stars ...? [2026-07-07]
  How Many Stars is a long-running international citizen science project now in its 22nd year, dedicated to measuring light pollution and night sky visibility through naked-eye observations submitted by volunteers worldwide. Participants count visible stars in specific regions and submit their reports, contributing to a global dataset tracking the degradation of dark skies over time.
• If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system [2026-07-07]
  Created by Josh Worth, this site presents a scale model of the solar system where the Moon is reduced to a single pixel, requiring visitors to scroll endlessly through vast empty space to appreciate the true distances between planets. The experience is both humbling and educational, with witty commentary along the way and the ability to toggle between kilometers, miles, AU, and other quirky units of measurement.
• IKI - Space Research Institute of Russian Academy of Sciences [2026-07-07]
  The Space Research Institute (IKI) of the Russian Academy of Sciences is Russia's principal organization for robotic space research, designing scientific instruments and leading missions such as Spektr-RG, ExoMars, and the Luna lunar program. Founded in 1965, this archived English-language site offers institutional history, department structure, mission summaries, and links to international conferences spanning decades of Soviet and Russian space science.
• In-The-Sky.org [2026-07-07]
  Created by Dominic Ford, In-The-Sky.org is a richly detailed astronomy portal offering real-time night sky guides, interactive planetarium tools, satellite tracking, and event calendars for celestial phenomena like eclipses, conjunctions, and meteor showers. Visitors can explore 3D solar system maps, rising and setting times for planets, deep sky object catalogs, and even printable planispheres and astrolabes, all tailored to their geographic location.
• Inconstant Moon – multimedia tours of the lunar surface [2026-07-07]
  Inconstant Moon offers nightly multimedia tours of the lunar surface, complete with maps, photos, animations, and music to guide both beginners and experienced observers through the Moon's craters, seas, and phenomena. A Scientific American Sci/Tech Web Awards honoree and BBC Space featured site, it includes a Cyclopedia Selenica and Selenographia making it a comprehensive reference for lunar astronomy.
• index.html [2026-07-07]
  Robert Gendler's astrophotography site showcases a stunning image gallery of astronomical objects alongside essays on 140 popular celestial subjects and a beginner's astronomy primer. The site also features technical articles on advanced imaging techniques like hydrogen alpha color imaging and Photoshop mosaics, plus information about Gendler's published books on astronomy.
• Indiana Astronomical Society [2026-07-07]
  The Indiana Astronomical Society is a membership-based club dedicated to amateur astronomy, offering monthly public lectures, access to the historic Goethe Link Observatory, dark-sky observing sites, and outreach programs for students across central Indiana. With resources ranging from a beginner Astronomy 101 crash course to star party event listings and a member collaboration site, it serves everyone from curious newcomers to seasoned sky watchers.
• INTER-SOL Programme [2026-07-07]
  International programme for sunspot observation: The INTER-SOL Programme (ISP), run by Volkssternwarte Paderborn e.V. in Germany, is an international citizen science initiative coordinating daily sunspot observations by amateur and professional astronomers since 1977. The site offers fundamentals about the sun, methods of sunspot counting and registration, an observers network, photo galleries, and INTER-SOL data archives, all presented in both English and German.
• IOTA [2026-07-07]
  The International Occultation Timing Association (IOTA) is a volunteer scientific organization founded in 1983 that coordinates amateur astronomers in timing astronomical occultations, including stars being blocked by asteroids and the Moon. The site offers observing guides, equipment recommendations, occultation predictions, citizen science campaigns, and published data that has contributed to real discoveries such as new double stars and improved asteroid shape models.
• IOTA Main Table of Contents [2026-07-07]
  The International Occultation Timing Association (IOTA) is a scientific organization dedicated to observing, timing, and reporting occultations and eclipses, including lunar grazes and asteroid occultations. The site serves as a comprehensive hub with prediction tables, observing guides, software tools like LiMovie and KIWI-OSD, and regional sections spanning Europe, the Middle East, India, Australasia, and East Asia.
• Iridium Flares [2026-07-07]
  A detailed reference page dedicated to Iridium satellite flares, covering why and how these spectacular visible reflections occur, flare prediction tools, orbital data, and launch history. It features one of the earliest known photographs of an unpredicted Iridium flare, observation reports, and an extensive directory of related resources for satellite observers.
• Isaac Newton Telescope [2026-07-07]
  The official site for the Isaac Newton Telescope (INT), a major optical telescope operated by the Isaac Newton Group of Telescopes on La Palma in the Canary Islands. Visitors can explore telescope instruments, apply for observing time, access data archives, check object visibility tools, and browse publications from this working research facility.
• Italian Meteor and TLE Network [2026-07-07]
  The Italian Meteor and TLE Network (IMTN) is a national Italian surveillance network dedicated to observing and studying meteors, fireballs, and Transient Luminous Events (sprites, jets) in the upper atmosphere between 20 and 120 km altitude. Founded in January 2009, the network operates permanent and mobile video and radio stations around the clock, connecting university researchers, amateur astronomers, and scientific associations across Italy.
• J. G.'s GeoAstro Applet Collection [2026-07-07]
  Juergen Giesen's GeoAstro Applet Collection offers more than 65 interactive Java applets for tracking the precise positions of the sun, moon, and planets, including sundials, moon phases, eclipse data, and sky maps for any location on Earth. Featured in Sky & Telescope magazine and honored with the Griffith Observatory Star Award, this site is a remarkable labor of love for amateur and professional astronomers alike.
• JH STAR GAZER HOME PAGE 10.01.12 [2026-07-07]
  The official web home of 'Star Gazers,' the world's only weekly PBS television series dedicated to naked-eye astronomy, hosted by the legendary Jack Horkheimer. Visitors can stream current and past video episodes, browse show scripts, read FAQs, and find local astronomy clubs and planetariums.
• Joe Roberts Astrophotpgraphy [2026-07-07]
  Joe Roberts shares a remarkable personal archive of amateur astrophotography spanning from 1974 to 2013, featuring backyard telescope images of deep-sky objects, planets, comets, and lunar phenomena. The site includes technical articles, a tour of his personal observatory, and a gallery of stunning images that rival professional observatory photography from decades past.
• John Pane's Home Page [2026-07-07]
  John Pane is a Ph.D. computer scientist and senior researcher at RAND Corporation whose homepage highlights his work in education technology and personalized learning. A standout feature is his astrophotography gallery, showcasing personal photos of stars, nebulae, comets, and a solar eclipse, which gives the site a compelling scientific hobby dimension.
• Juplet [2026-07-07]
  Akkana Peck's Juplet page offers a Java applet and JavaScript tool for tracking the positions of Jupiter's four Galilean moons, their shadows, and the Great Red Spot in real time. A labor of love rooted in real astronomical calculations from Jean Meeus' algorithms, the page also includes telescope sketches, links to Jupiter observation resources, and satellite event data.
• K3's Astronomy Home Page [2026-07-07]
  Peter Katreniak's astronomy page covers CCD imaging and observations of planets, the Moon, the Sun, eclipses, and deep-sky objects. A hobbyist astronomer's showcase featuring telescope photography and tools like K3CCDTools, making it a great find for amateur astrophotographers.
• KAS Online >> Astroweb Yellow Pages [2026-07-07]
  The Kalamazoo Astronomical Society's curated astronomy link directory groups hundreds of carefully selected web resources into subject categories, from amateur telescope making and astrophotography to planetary exploration and dark-sky parks. Organized like a yellow pages phone book, this extensive collection makes it easy for both beginners and seasoned stargazers to find the best astronomy sites on the web.
• Keene, NH - Astronomy [2026-07-07]
  The Keene Amateur Astronomers (KAA) is a New Hampshire astronomy club established in 1957, offering members access to an observatory, star parties, observing events, telescope training, and a member photo gallery featuring stunning shots of comets, auroras, and the Milky Way. The club also highlights community achievements like member Susan Rolke's selection for NASA and ACEAP ambassador programs, making it a rich hub for both beginner and experienced stargazers in the Cheshire County region.
• Kern County Astronomical Society - KERN COUNTY ASTRONOMICAL SOCIETY [2026-07-07]
  The Kern County Astronomical Society (KCAS) is a Bakersfield, California astronomy club founded in 1956 with a mission to foster interest in astronomy among members and the general public. The site offers information on star parties, meetings, membership, and a photo gallery featuring events like the Dark Skies Festival and visits to Mount Wilson Observatory.
• L+500 and counting – 500th person in space | collectSPACE [2026-07-07]
  CollectSPACE covers space history news and milestones, including this detailed article tracking which astronaut became the 500th person to fly into space during the STS-127 shuttle mission in 2009. The site provides a comprehensive numbered list of all 500 spacefarers up to that point, mission by mission, making it a valuable reference for space history enthusiasts.
• laika's lonely planet [2026-07-07]
  Laika's Lonely Planet is a space-themed personal site that invites visitors to drift into the cosmos, named after the famous Soviet space dog Laika. The landing page sets an atmospheric, starry tone with its retro web aesthetic, promising a fuller experience on desktop with JavaScript enabled.
• Large Telescopes [2026-07-07]
  A comprehensive reference table listing the world's largest optical telescopes, compiled by Bill Arnett and hosted at Middle East Technical University's physics department. Each entry includes the telescope's aperture, name, geographic coordinates, altitude, and technical notes, making it a handy quick-reference for astronomy enthusiasts and researchers.
• LAS Equinox Sky Camp [2026-07-07]
  The LAS Equinox Sky Camp is the UK's largest star party, bringing hundreds of amateur astronomers together for a week of dark-sky observing at Kelling Heath Holiday Park on the North Norfolk coast. The site covers event logistics, pitch booking advice, vendor trade stands, talks, and links to associated astronomy societies and suppliers.
• learningastronomy.com [2026-07-07]
  LearningAstronomy.com appears to be an educational resource focused on astronomy, though the page content is extremely sparse with only a single image loaded. The domain name strongly suggests a site aimed at introducing beginners to astronomy concepts and space science.
• Life on Wandering Planets [2026-07-07]
  Clark M. Thomas presents a speculative essay on the possibility of life on wandering planets and dark solar systems, drawing on extremophile biology and decades of independent astronomical thinking. The piece weaves together astrophysics, astrobiology, and theology, touching on exoplanets, Europa, HIV research history, and UFOs as part of the author's idiosyncratic intellectual journey.
• Los Cielos de América [2026-07-07]
  Stéphane Guisard's personal astrophotography showcase, 'Los Cielos de América,' features stunning celestial imagery captured from the Americas and beyond. The image-heavy site is a visual feast for astronomy enthusiasts, presenting the night skies through the lens of a dedicated and skilled astrophotographer.
• Lowell Observatory | Asteroid Observing Tools [2026-07-07]
  Lowell Observatory's Asteroid Observing Tools hub provides professional-grade data mining and observation planning tools for minor planets and comets, powered by the astorbDB database. Researchers and amateur astronomers alike can query orbital parameters, generate ephemerides, identify near-Earth asteroids, and download datasets using interactive tools like AstEph, AstFinder, and QueryBuilder.
• Lynkeos home page [2026-07-07]
  Lynkeos is a SourceForge-hosted software project dedicated to processing planetary images captured with webcams, aimed at amateur astronomers looking to enhance their astrophotography. The tool focuses on stacking and refining low-quality frames to produce sharper planetary images, making it a niche but valuable resource for hobbyist planetary imagers.
• Macarthur Astronomical Society – astronomy in sydney's south west [2026-07-07]
  The Macarthur Astronomical Society serves amateur astronomers in Sydney's south west, offering field nights at multiple observation sites, astro imaging workshops, citizen science projects, and a Deep Space Hunt program. With resources like the Messier and Caldwell lists, ISS tracking, sky conditions, and a 2028 Solar Eclipse planning page, this is a well-rounded hub for a genuinely active local astronomy club.
• MAGNITUDE CALCULATOR [2026-07-07]
  A focused online calculator for computing astronomical magnitudes, covering apparent magnitude, absolute magnitude, and stellar luminosity with worked examples using real celestial objects like the Sun, Moon, and Sirius. The tool walks visitors through the underlying math of the magnitude scale, making it a handy reference for astronomy students and hobbyists alike.
• Mars Introduction [2026-07-07]
  Calvin J. Hamilton's comprehensive Mars reference page covers everything from the planet's geology and atmosphere to its moons, polar regions, and exploration missions like Viking, Pathfinder, and the Mars Rovers. Packed with images, animations, 3D galleries, and scientific articles, it serves as a deep-dive educational hub for anyone fascinated by the Red Planet.
• Mauritania - 1973 June 30 Total Solar Eclipse - Interactive Google Map - Xavier Jubier [2026-07-07]
  Xavier Jubier's interactive Google Map documents the path and details of the June 30, 1973 total solar eclipse over Mauritania, offering a precise geographic visualization of this historical celestial event. The map-based format makes it easy to explore the eclipse's path of totality across the region with geographic context.
• Mel Bartels and BBAstroDesigns [2026-07-07]
  Mel Bartels runs this personal hub covering amateur telescope making alongside his BBAstroDesigns venture and beekeeping with top bar hives. The site blends hands-on astronomical craftsmanship with natural observations like ice spikes, sun rainbows, and sun pillars.
• meow! [2026-07-07]
  Lexi's personal homepage blends astrophotography, programming projects, and game corruption experiments into a vibrant, technically impressive old-web-style showcase. Visitors can browse her astrophotography gallery, explore open-source tools she built, and see wild ROM corruption screenshots from titles like Mario Kart Wii and Celeste.
• Meteor Showers 2026 - 2027 - American Meteor Society [2026-07-07]
  The American Meteor Society, founded in 1911, maintains this comprehensive resource for tracking meteor showers, fireballs, and related meteoric phenomena, including a detailed calendar of upcoming showers for 2026-2027. Visitors can report fireball sightings, browse fireball logs, explore observing programs, and access guides on photographing meteors with a DSLR.
• Meteorite Central - home of the Meteorite Mailing List Archives [2026-07-07]
  Meteorite Central is the home of the Meteorite Mailing List Archives, preserving over 25 years of posts from a community of more than 1800 meteorite enthusiasts, collectors, and hunters. Visitors can explore archived discussions, learn what meteorites are, and browse highlights from one of the longest-running online communities dedicated to meteorite collecting and research.
• Meteorite Identification Home Page [2026-07-07]
  Meteorite-identification.com helps enthusiasts and beginners distinguish genuine meteorites from 'meteor-wrongs,' offering identification tests, case studies of misidentified specimens, and commentary on media coverage of meteorite claims. The site also covers meteorite collecting as a hobby, with guidance on buying specimens and evaluating suspect auction listings on eBay.
• Midlands Astronomy Club, Inc [2026-07-07]
  The Midlands Astronomy Club is a 501(c)(3) non-profit based in Columbia, South Carolina, bringing together amateur astronomers for regular meetings, dark-sky observing sessions, astrophotography, and community outreach. The site features a meeting calendar, DIY projects, a member gallery, moon phase tools, and links to affiliated regional astronomy clubs across South Carolina.
• Mike Boschat's Astronomy Page [2026-07-07]
  Mike Boschat's astronomy page celebrates 60 years of stargazing from Halifax, Nova Scotia, covering lunar, solar, meteor, and noctilucent cloud observations with an impressive collection of Soviet-made telescopes and binoculars. The site includes astro images, SOHO discoveries, links to clear sky clocks, light pollution maps, and a vast collection of astronomy resources alongside the author's work with the Aeronet Sunphotometer at Dalhousie University.
• Milton Keynes Astronomical Society [2026-07-07]
  The Milton Keynes Astronomical Society (MKAS) has been bringing together stargazers in the UK since 1972, offering public observing sessions, fortnightly lectures, astrophotography workshops, and youth programs. Their site features an astro calendar, photo gallery, equipment hire, observing aids, and a live aurora forecast, making it a practical hub for both beginners and experienced astronomers in the region.
• Milwaukee Astronomical Society [2026-07-07]
  The Milwaukee Astronomical Society has maintained this richly detailed site for its membership, featuring multiple observatories, a deep archive of astrophotography spanning decades, and extensive beginner resources covering telescopes, stargazing tours, and celestial objects. With a historic club archive dating back to 1932, seasonal sky guides, variable star projects, and a member image showcase, this is a treasured hub for amateur astronomers in Wisconsin.
• Misti Mountain Observatory - Astronomy Pages [2026-07-07]
  Misti Mountain Observatory is an amateur astronomy site featuring stunning astrophotography captured with a 32-inch Ritchey-Chretien telescope in Arizona, covering galaxies, nebulae, star clusters, and solar system objects. The site includes detailed equipment notes, film and CCD imaging data, conference listings, and even a specialized app that lets blind and visually impaired users explore astronomical images through musical tones.
• mm4rk3t [2026-07-07]
  A minimalist personal page from a creator known as mm4rk3t, built around a Latin aphorism about stars being visible only at night and the sleepless nights that make mathematicians and astronomers. The sparse, cryptic aesthetic and classical quotation give the site an enigmatic, philosophical quality that hints at interests in astronomy and mathematics.
• Molecular Expressions [2026-07-07]
  Science, Optics and You - Secret Worlds: The Universe Within - Interactive Flash Tutorial: Hosted by Florida State University's National High Magnetic Field Laboratory, this interactive tutorial takes visitors on a visual journey from 10 million light-years away down to the subatomic level in successive powers of ten. The experience moves through galaxies, the solar system, Earth, a leaf, its cells, DNA, and finally protons and electrons, making the concept of scale tangible and awe-inspiring.
• Moon – Bartosz Ciechanowski [2026-07-07]
  Bartosz Ciechanowski's deep-dive interactive article on the Moon covers everything from its orbital mechanics and phases to tides, eclipses, craters, and gravitational effects, all brought to life with stunning real-time 3D simulations and draggable visualizations. One of the most richly illustrated and technically impressive science explainers on the web, it invites readers to genuinely experience lunar concepts rather than just read about them.
• Moon Information Resource And Guide [2026-07-07]
  MoonConnection.com is a comprehensive lunar reference covering moon phases, eclipses, Apollo missions, tides, and the moon's gravitational effects, complete with interactive tools and a monthly phases calendar. It also offers practical guides on fishing, hunting, and night photography by moon phase, plus companion mobile apps for tracking lunar cycles on the go.
• Moravian College Astronomy [2026-07-07]
  Gary A. Becker's astronomy hub at Moravian University offers original astrophotography, weekly starwatch articles, and curated links to astronomy, weather, and science resources. Highlights include stunning lunar eclipse photos and decades of accumulated observational content dating back to 1996.
• MrEclipse.com [2026-07-07]
  Fred Espenak, known as MrEclipse, is a renowned NASA astrophysicist who has dedicated this site to comprehensive solar and lunar eclipse resources, including photography guides, safety tips, and extensive photo galleries spanning from 1970 to the present. Visitors will find detailed previews of upcoming eclipses through 2040, firsthand accounts of totality, and stunning images captured across decades of eclipse-chasing expeditions.
• MrEclipse.com [2026-07-07]
  Fred Espenak, known online as MrEclipse, has built one of the most comprehensive eclipse resources on the web, covering solar and lunar eclipses with decades of photographs spanning from 1970 to the present. Visitors will find beginner guides, safety tips, photography tutorials, eclipse preview calendars, and an extensive archive of stunning eclipse imagery from expeditions around the world.
• Muskegon Astronomical Society [2026-07-07]
  The Muskegon Astronomical Society is a Michigan-based non-profit astronomy club founded in 1972, with its own multi-building observatory complex and an active membership of stargazers. The site features astrophotography from members including nebulae, auroras, comets, and Saturn, plus comet ephemeris tools, observing links, a club events calendar, and JavaScripts for night sky calculations.
• Naming Stars [2026-07-07]
  A detailed reference page from SEDS (Students for the Exploration and Development of Space) explaining how stars are named, from ancient cultural traditions to modern systematic schemes like the Bayer designation system introduced in 1603. Created by Hartmut Frommert and Christine Kronberg, the page covers Greek letter designations, star catalogs, IAU nomenclature standards, and debunks commercial 'name a star' schemes.
• NASA - Total Solar Eclipse of 2017 Aug 21 [2026-07-07]
  Fred Espenak's NASA Eclipse Website hosts an interactive Google Maps tool showing the precise path of totality for the August 21, 2017 total solar eclipse, including central line, northern and southern limits, and 10-minute interval markers. Hosted by NASA's Goddard Space Flight Center, the page provides detailed data on greatest eclipse, greatest duration, lunar limb profiles, and eclipse weather resources.
• NASA RP 1383 [2026-07-07]
  Sources for Solar Filters: Part of NASA Reference Publication 1383, this page provides a curated list of U.S. vendors selling mylar and glass solar filters safe for eclipse and solar viewing with or without a telescope. It includes contact details for well-known optics companies like Celestron, Meade, and Orion, making it a practical companion resource for amateur astronomers preparing for solar observation.
• NASA Watch - This is not a NASA website. You might learn something. It's YOUR space agency. Get involved. Take it back. Make it work - for you. [2026-07-07]
  NASA Watch is a long-running independent watchdog site run by Keith Cowing, covering NASA news, policy, personnel changes, and space exploration with a critical insider perspective. With archives stretching back to 1993, it tracks everything from Artemis and ISS developments to congressional oversight and agency politics.
• NASA Watch .info NASA watchdog regarding space [2026-07-07]
  NASAWatch.INFO is an independent, sponsor-free watchdog site that critically examines NASA's bureaucracy, spending, and policies, advocating for commercial spaceflight and government reform. Visitors will find curated links, news articles, congressional bills, scandal coverage, and commentary pushing for a privatized, democratically accountable space program.
• NASA's Radio JOVE Project [2026-07-07]
  Home Page: NASA's Radio JOVE Project invites students, educators, and citizen scientists to observe and study solar and planetary radio emissions using affordable dipole antenna telescope kits they build themselves. The site offers detailed guides for constructing radio telescopes, downloadable spectrograph software, a data archive, educational materials, and a community map of active Radio JOVE teams around the world.
• National Capital Astronomers, Washington, D.C. Metro Area [2026-07-07]
  The National Capital Astronomers is a Washington D.C. metro area nonprofit astronomy club founded in 1937 at the US Naval Observatory, offering monthly star talks, public telescope events at Rock Creek National Park, and science fair outreach programs. Members and visitors can find meeting lecture videos, telescope-making workshop info, stargazing tips, and membership details for this long-running amateur astronomy society.
• Neutron stars [2026-07-07]
  Professor M. Coleman Miller of the University of Maryland shares an in-depth educational resource on neutron stars, covering topics from formation and internal structure to pulsars, X-ray bursters, and gamma-ray bursts. The page blends academic rigor with accessible writing, including links to pedagogical reviews, Q&A sections, and visual aids that make complex astrophysics approachable.
• New England MeteoriticalServices, Everything about Meteorites 2020 [2026-07-07]
  New England Meteoritical Services (meteorlab.com) is a long-running resource dedicated to everything about meteorites, including identification, appraisal, and high-resolution structural imagery through a companion site covering primary and secondary meteorite structures. The organization has been online since 1994 and served as examiner and appraiser of the historic Huss-Nininger Collection of Meteorites and Tektites, making it a notable reference for both collectors and researchers.
• New Hampshire Astronomical Society [2026-07-07]
  The New Hampshire Astronomical Society is a volunteer-run nonprofit dedicated to public astronomy education through skywatches, club meetings, and outreach to schools and libraries across New Hampshire. Visitors can find upcoming observing events, solar and lunar data, a telescope lending program, and resources for amateur astronomers throughout the region.
• New Zealand Astronomy Directory [2026-07-07]
  The New Zealand Astronomy Directory is a comprehensive curated guide to stargazing operators, observatories, and dark sky experiences across New Zealand, from Qualmark-approved planetariums to guided night sky tours on Stewart Island. Visitors can browse listings by region to find observatories, astrophotography tours, and dark sky places throughout both the North and South Islands.