Just when you thought there was too much to explore in outer space! Astronomers have a virtually infinite amount of astronomical information at their finger tips in cyberspace.
No listing of astronomical World Wide Web pages can be complete, but we've tried to compile the ones which we think are most useful and interesting. Instead of listing them in alphabetical order we've group them by subject. Just like the yellow pages in the phone book.
Multiple programs to assist with telescope construction.
The ATM's Workshop
Projects, Tips, and Techniques for the Amateur Telescope Maker.
Mel Bartel's ATM page
Feature many articles on telescope mountings and optics.
The leader in precision optical mirror coatings for telescopes and astronomy.
Capital Area Astronomy Association
Meets monthly at Abrams Planetarium in East Lansing.
Ford Amateur Astronomy Club
Group of amateur astronomers from Dearborn area.
General Motors Astronomy Club
Founded in 2017 and based in the Milford area.
Grand Rapids Amateur Astronomical Association
Neighboring club to the north; owns and operates Veen Observatory.
Grand Traverse Astronomical Society
Astronomy enthusiasts from northeastern Michigan.
Kalamazoo Astronomical Society
Founded in 1936, oldest and one of the largest groups in Michigan.
Muskegon Astronomical Society
Neighboring club to the northwest.
Oakland Astronomy Club
Club based in Oakland County in Southeast Michigan.
Shoreline Amateur Astronomical Association
Group from the Holland area on the shore of Lake Michigan.
Sunset Astronomical Society
Club based in the Bay City area.
University Lowbrow Astronomers
Amateur group based in the Ann Arbor region.
University of Michigan Student Astronomical Society
Student group educating students and public about astronomy.
Warren Astronomical Society
Large group of amateur astronomers from the Detroit area.
Regional (Illinois / Indiana / Ohio)
Calumet Astronomical Society
Enthusiasts from Northwest Indiana and southern Chicago regions.
Columbus Astronomical Society
Central Ohio's largest and oldest organization.
Fort Wayne Astronomical Society
Amateur astronomers from northeastern Indiana region.
Indiana Astronomical Society
Based in the Indianapolis region.
Lake County Astronomical Society
Club in the Northeastern region of Illinois.
Michiana Astronomical Society
Located in Northern Indiana, from the South Bend region.
National (and Canada)
Antique Telescope Society Home Page
Dedicated to promote the history of astronomy.
Astronomical Society of Kansas City
Founded in 1935 and operates Powell Observatory.
Houston Astronomical Society
Texas group founded in 1955.
Los Angeles Astronomical Society
Large organization founded in 1926.
North York Astronomical Association
Host of Starfest, based in Ontario, Canada.
Orange County Astronomers
Large organization in southern California.
Peoria Astronomical Society
Amateur astronomers from north-central Illinois.
Phoenix Astronomical Society
Desert astronomers in central Arizona.
San Diego Astronomy Association
A non-profit educational organization established and incorporated in 1963.
San Francisco Amateur Astronomers
Astronomy enthusiasts from the Bay Area.
Co-founded by John Dobson in 1968.
Tucson Amateur Astronomy Association
Astronomy enthusiasts from southeastern Arizona.
Ventura County Astronomical Society
Educational and scientific group north of Los Angeles.
Astronomical Society of Victoria
Astronomy mates in southeastern Australia.
Brisbane Astronomical Society
Australian amateur astronomers on the east coast.
Northern Ireland Amateur Astronomy Society
Amateur astronomers from Northern Ireland.
Sheffield Astronomical Society
Amateur group in South Yorkshire, England.
Apogee CCD Cameras
High performance CCD cameras.
Astronomy filters for imaging and research.
High-end refractors and German equatorial mounts.
Makers of dew controllers, dew caps, focusing masks, and much more.
Manufacturer and importer of telescopes, binoculars, etc.
Hydrogen Alpha solar telescopes.
Deep Sky Instruments
Makers of high-end Ritchey-Chrétien Telescopes.
Specializes in binoviewers for telescopes.
Finger Lakes Instrumentation
Quality Cooled CCD Cameras for Scientific and Astronomical Imaging.
Makers of Center Balanced and German equatorial mount, plus camera trackers.
Kendrick Astro Instruments
Dew controllers, solar filters, and power supplies.
Fine German equatorial mounts and astrophotography accessories.
Lunt Solar Systems
Maker of hydrogen alpha solar telescopes and accessories.
Meade Instruments Corporation
Telescopes and accessories for beginners and advanced amateurs.
My Case Builder
Design custom foam for your eyepiece case and much more.
Larger aperture Dobsonian telescopes for obsessed observers.
Optical Guidance Systems
Research grade Ritchey-Chrétien Telescopes.
Makers of high-end Dall-Kirkham Telescopes.
SBIG Imaging Systems
Major manufacturer of CCD cameras and accessories.
Makers of the Paramount ME II, MX & MyT, TheSky, and more.
Feather Touch Focusers for telescopes.
High quality refractors and accessories.
Top notch refractors, astrographs, and more.
Beautiful refractors and highest quality eyepieces in the world.
Thousand Oaks Optical
Solar filters, dew heaters, and deep sky filters.
Makers of large aperture Dobsonian telescopes right here in Michigan.
Fine refractors, eyepieces, and other accessories.
Astronomy books, atlases, and software.
Large variety of filters and optical accessories.
Anacortes Telescope & Wild Bird
Large mail order dealer in Washington state.
Large mail order dealer in Norman, Oklahoma.
Sells astronomical and other science and nature products.
A good source for replacement dust caps for eyepieces, diagonals, etc.
Oceanside Photo & Telescopes
Large mail order dealer in Oceanside, California.
Orion Telescopes & Binoculars
Largest mail order outfit in the United States.
Telescope shop in Tucson, Arizona.
Astronomical & Nightscape Photography
Award winning images and articles by Chris Cook.
Images and printing services by Tony and Daphne Hallas.
Astrophotography by Bob & Janice Fera
Images taken with ASA 8" Astrograph, 12.5" RC, and more.
Catching the Light
Images and many helpful articles by Jerry Lodriguss.
Astrophotography articles and images by Chuck Vaughn.
Imaging the Deep Sky
Astronomical images from Ash Meadows Observatory by George Greaney.
Night Sky Pix
Helpful articles to help you learn to photograph the night sky.
Russell Croman Astrophotography
Fine Photographs of Celestial Wonders.
Star Circle Academy
Night and Low Light Photography Tips, Webinars, Field Events and Workshops.
The Universe in Color
Images by Rob Gendler from his robotic observatory in New Mexico.
Aurora - 30 Minute Forecast
See if there's auroral activity in your area right now!
Aurora Borealis Forecast
Aurora forecasting from Soft Serve News.
Aurora forecast from the University of Alaska Fairbanks.
Auroras: Paintings in the Sky
Learn about aurora with their self-guided lesson.
The Aurora Page
Images and links from Michigan Tech.
News and information about meteor showers, solar flares, and much more.
Space Weather Enthusiasts Dashboard
Information on current conditions from the Space Weather Prediction Center.
Website by astronomer, writer, and skeptic Phil Plait.
The astronomy blog for amateurs of all levels.
Snapshots from Space
Focus on planetary exploration by Emily Lakdawalla from the Planetary Society.
Central Bureau for Astronomical Telegrams
Operates at the Harvard-Smithsonian Center for Astrophysics.
A wealth of information on comets of the past, present, and future.
Big Bend National Park
National park in western Texas nestled in the “Big Bend” of the Rio Grande River.
Cherry Springs State Park
82-acre state park surrounded by the Susquehannock Forest in Pennsylvania.
Death Valley National Park
An IDA "gold-tier" park located west of Las Vegas in California.
Wilderness Retreat on Manitoulin Island; they also host two summer star parties.
Headlands International Dark-Sky Park
Located on the shore of Lake Michigan near Mackinaw City.
John Glen Astronomy Park
Located inside of Hocking Hills State Park in Southeast Ohio.
Natural Bridges National Monument
The first International Dark Sky Park, located in southeastern Utah.
33 Doubles in Orion
Detailed table of double stars in Orion with star maps for each.
Double Star Log
Contains 100 entries and sketches by KAS member Richard Bell.
Tremendous amount of information of the famous catalog and its history.
Messier Marathon Guide
Detailed analysis of planning and executing the marathon by Richard Bell.
NASA website on eclipses with information about events, science, and much more.
Eclipse Megamovie 2017
Project hoping to collect eclipse photos from over 1,000 amateur astronomers.
Software (for the PC) that controls your camera during solar eclipses.
Eclipse Photography Home Page
Incredible eclipse images by Miloslav Druckmüller.
Loads of information on solar and lunar eclipses by "Mr. Eclipse" Fred Espenak.
Information on future eclipses with weather information from Jay Anderson.
Google Maps 2024 Eclipse Page
Zoom into and get detailed information for any point along the 2024 eclipse path.
Great American Eclipse
Detailed maps and much more on the August 21, 2017 total solar eclipse.
Front Page Science
Special event and information for the 2017 total solar eclipse.
Information on upcoming eclipses and what causes them.
Includes a detailed overview of the 2017 eclipse with links to special events.
Sky & Telescope's 2017 Eclipse Page
Many helpful articles to get you ready for the 2017 total solar eclipse.
Solar Eclipse Maestro
Software (for Macs) that controls your camera during solar eclipses.
Total Solar Eclipse 2017
100s of links to small towns and cities along the eclipse path with weather info.
Includes section on Exopaleontology.
California & Carnegie Planet Search
Features the latest news, articles, and a catalog of all known exoplanets.
Extrasolar Artwork by Lynette Cook
Well known astronomical artist with large collection exoplanet artwork.
Extrasolar Planets Encyclopedia
Most up-to-date listing maintained by Jean Schneider of Paris Observatory.
Kepler Mission: A Search for Terrestrial Planets
Mission to search for Earth-sized and smaller planets using transit method.
NASA site with all the latest news on discoveries and missions.
Collaboration to improve statistics of galactic planetary census.
Transiting Exoplanet Survey Satellite (TESS)
NASA mission that will discover exoplanets orbiting the brightest stars in the sky.
Educational Resources for introductory astronomy college course.
Guide to telescopes, planets, constellations, and more.
Provides information about NASA's scientific endeavors and achievements.
Night Skies Network
A site for amateur astronomers who like to view and share our night time skies.
Personal Pages of Astronomers
Hundreds of links to amateur astronomers around the world.
Secret Worlds: The Universe Within
Powers of Ten style tour of outer and inner space.
Seeing in the Dark
Web page dedicated to the PBS Special by Timothy Ferris.
Latest news and information on astronomy and space exploration.
Two Micron All Sky Survey (2MASS) image database.
Astronomy Picture of the Day
A different image of our universe every day.
Hubble Heritage Program
Monthly images from the HST with achieve of past releases.
Latest news and information about the iconic space telescope.
Public access to NASA's images, videos and audio collections.
Thousands of images from the planets and moons of the solar system.
Sloan Digital Sky Survey
A survey to map one-quarter of the entire sky in detail.
An image of every object in the New General Catalog.
Interactive sections on the solar system, deep space, and much more.
NASA's Kids Club
Feature educational games, picture dictionary, and much more.
Games, projects, and fun facts about Earth, space and technology.
An astronomy news service for children aged eight and above.
Dark Sky Initiative
Information to educate and motivate you to fight light pollution.
Dark Site Finder
Contains of list of sites with dark skies and a n interactive light pollution map.
International Dark-Sky Association
Dedicated to preserve and protect the night time environment.
Information from the National Park Service.
Light Pollution and Ecosystems
Nice article by Actionbioscience.org with lots of links and references.
Light Pollution Atlas 2006
Color coded light pollution map compiled by David Lorenz at University of Wisconsin.
Light Pollution Hurts the Environment, Hides the Night Sky
Lots of information from the Department of Physics at Florida Atlantic University.
Dedicated to reducing light pollution and restoring the natural night time sky.
Starry Night Lights
Commercial Dark Sky Lighting.
Amateur Astronomy Magazine
News for, by and about amateur astronomers around the world.
The world's best-selling astronomy magazine.
The United Kingdom's best-selling astronomy magazine.
Astronomy Technology Today
Your complete guide to astronomical equipment.
The Canadian magazine of astronomy and stargazing.
Sky & Telescope
The essential magazine of astronomy.
Publication of The University of Texas at Austin McDonald Observatory.
American Meteor Society
Inform, encourage, and support the research in meteor astronomy.
ASU Center for Meteorite Studies
Wealth of information on meteorites from Arizona State University.
International Meteor Organization
Collects meteor observations from around the world.
News, information, and images about all known rocks from the red planet.
Meteoroids and Meteorites
Covers the basics of meteor astronomy with images of the various classes.
Sky & Telescope's Meteor Page
News on upcoming meteor showers and many how-to articles.
Take a tour each night, with maps, photos, explanations, animations.
Lunar Society International
Official website of the Moon.
Virtual Atlas of the Moon
Free software for Moon observation or survey.
Albion College Observatory
Built in 1883, contains an 8.25" Alvan Clark refractor.
Contains a 24-inch Boller & Chivens Ritchey-Chrétien telescope.
Owned and operated by the Kalamazoo Astronomical Society.
Observatory on the campus of Eastern Michigan University.
Facility of the Grand Rapids Amateur Astronomical Association.
Laser Interferometer Gravitational-Wave Observatory (LIGO)Radio
Consists of twin observatories in Washington and Louisiana.
Laser Interferometer Space Antenna (LISA)
NASA/ESA mission scheduled to launch in the early 2030s.
European facility located near Pisa, Italy.
Atacama Large Millimeter/submillimeter Array (ALMA)
Advanced telescope array in the Atacama Desert in Chile.
World's largest radio telescope, located in Puerto Rico.
Green Bank Telescope
World's largest fully steerable radio telescope - spanning 100 meters.
A 64-meter radio telescope located in Australia.
Very Large Array
Network of 27 radio telescopes near Socorro, New Mexico.
Big Bear Solar Observatory
Operated by the New Jersey Institute of Technology.
Cerro Tololo Inter American Observatory
Premiere observing sites in Chile, includes Gemini 8m and more.
Grove Creek Observatory
Remote Internet controlled public telescopes in Australia.
Kitt Peak National Observatory
Largest observatory in continental U.S. - located in Arizona.
Large Binocular Telescope
Telescope with two 8.4-meter mirrors on Mount Graham, Arizona.
Large Synoptic Survey Telescope
Proposed ground-based 8.4-meter nightly all-sky survey telescope.
Historic facility on Mount Hamilton in California.
A private research institution in Flagstaff, Arizona.
Mauna Kea Observatories
Prepare site in Hawaii; includes the twin 10-meter Keck telescopes.
Operated by University of Texas at Austin; located near Fort Davis.
Mount Wilson Observatory
Home of the historic 100-inch Hooker telescope in California.
National Optical Astronomy Observatories
Operates observing facilities of Kitt Peak and Cerro Tololo.
Home of the historic 200-inch Hale telescope in California.
U.S. Naval Observatory
Remote observing stations located in Arizona and Colorado.
Chandra X-ray Observatory
One of NASA's Great Observatories; launched in 1999.
Herschel Space Observatory
Infrared telescope operated by the European Space Agency.
Hubble Space Telescope
Official website of the legendary telescope.
James Webb Space Telescope
Future 6.5-meter space telescope; the successor to Hubble.
Spitzer Space Telescope
Infrared telescope launched in 2003.
An orientation to the night sky for novice astronomers.
Observe 100 lunar features with eyes, binoculars, and a telescope.
Lunar II Club
Observe another 100 lunar features.
Observing program designed for younger observers.
Designed to expose beginners to many different types of objects.
Binocular Double Star Observing Program
Observe 50 out of 120 double stars suitable for binoculars.
Observe at least 50 Messier objects with binoculars.
Deep Sky Binocular
Observe at least 50 non-Messier objects with binoculars.
Southern Skies Binocular
Observe 50 deep sky objects visible from the Southern Hemisphere.
Arp Peculiar Galaxy
Image 100 Arp galaxies with a CCD camera.
Observe all 109 objects in Patrick Caldwell-Moore's list.
Galaxy Groups & Clusters
Observe up to 120 objects in four different categories.
Observe and compare up to 50 different globular clusters.
Observe 400 objects in William Herschel's New General Catalog.
Observe another 400 NGC objects.
Observe all 110 objects in Messier's famous catalog.
Open Cluster Club
Observe, sketch, and classify up to 125 open clusters.
Planetary Nebula Club
Observe and/or image up to 110 planetary nebulae.
Observe and log at least 50 objects visible from southern skies.
Observe 100 objects from light polluted skies.
Observe and/or image up to 100 asteroids.
Observe and/or image up to 30 different comets.
Double Star Club
Observe 100 of the finest double stars in the sky.
Earth Orbiting Satellite Observing
Observe a variety of man-made orbiting satellites.
Complete ten Astronomical League Observing Programs to qualify.
Observe and log meteor observations for up to six hours.
Complete at least 25 of 27 planetary observing projects.
Make 5 detailed and 20 full-disk sketches of sunspots.
Located on the campus of Michigan State University in East Lansing.
Oldest planetarium in the western hemisphere; located in Chicago.
Albert Einstein Planetarium
Located in the National Air and Space Museum in Washington D.C.
Ireland's leading center for astronomical education.
Part of the Carnegie Science Center in Pittsburgh, Pennsylvania.
Griffith Observatory and Planetarium
Historic facility located in Los Angeles, California.
First orbiting mission to Saturn; Huygens landed on Titan in 2005.
Mission to orbit asteroids Vesta and Ceres.
New Frontiers Mission to Jupiter.
Mars Exploration Program
NASA's main site for the exploration of the red planet.
Mission of the European Space Agency - currently in orbit.
First probe ever to orbit the innermost planet.
NASA mission to the Pluto-Charon system and beyond.
Collected samples of Comet Wild 2 and returned them to Earth in 2006.
Mission of the European Space Agency - currently in orbit.
Voyager Project Home Page
NASA's legendary planetary probes now heading into interstellar space.
Video blog with the latest news in astronomy and space exploration.
Weekly discussions on a variety of astronomical topics.
Hearts of Space
Slow music for fast times - free on Sundays only.
Weekly podcast of the Planetary Society.
Monthly highlights of the night sky by Kelly Beatty of Sky & Telescope.
Learn about the latest discoveries from a Hubble scientist.
A production of the University of Texas McDonald Observatory.
Covering the latest space news from around the Internet.
Predictions for the space station, iridium flares, and more for your area.
ISS Transit Finder
Calculates when the ISS will transit the Sun or Moon from your area.
Visual Satellite Observer's
Provides information on all facets of visual satellite observation.
Astronomer's Control Panel (ACP)
Advanced observatory control from DC-3 Dreams.
Astronomy and astrophotography software for Mac OS X and iOS.
Comprehensive astronomical planning and logging software.
3D flight simulation, live Earth cloud data, and more.
Earth Centered Universe
A planetarium and telescope control program for Windows.
A powerful general-purpose charting/desktop planetarium tool.
Create custom star chart and observing lists.
Observation planning, charting, and logging.
Multi-tasking program with versions for all user levels.
Several programs by Michael Covington.
Simplifies all the pre-processing steps of deep sky pictures.
Cartes du Ciel
Great desktop planetarium and star charting program.
Free image manipulation program.
Multi-faceted imaging processing program.
Seamlessly navigate from Earth to the edges of the known Universe.
Automatically aligns and stacks your best webcam images.
Sky View Café
Java-based program that turns your web browser into a planetarium.
Helps you automatically assemble digital images into star trails.
Colorful desktop planetarium program.
Where is M13?
A Three Dimensional Galactic Atlas
A star-charting, sky-simulating, ephemeris-generating virtuoso.
Build a Solar System
Create a scale model of the solar system.
The history, mythology, and scientific knowledge of the solar system.
If the Moon Were Only 1 Pixel
A tediously accurate scale model of the solar system.
Solar System Exploration
Current news and a treasure trove of information on the planets.
Solar System Guide
Website by the University of Texas McDonald Observatory.
Solar System Scale Model
This web page shows the planet's sizes and distances to scale.
Views of the Solar System
Wealth of information on the Sun, planets, moons, and more.
Canadian Space Agency
Committed to leading the development and application of space knowledge.
European Space Agency
Europe’s gateway to space.
Jet Propulsion Laboratory
Operated by the California Institute of Technology.
Kennedy Space Center
Gateway to exploring, discovering and understanding our universe.
Lunar and Planetary Institute
Provides support services to the planetary science community.
Official site of the National Aeronautics and Space Administration.
National Space Science Data Center
The permanent archive for NASA space science mission data.
Space Telescope Science Institute
Operates the Hubble Space Telescope; located in Baltimore, Maryland.
American Astronomical Society
The major organization of professional astronomers in North America.
Association of Lunar and Planetary Observers
Clearing house for amateur and professional planetary observations.
Astronomical Society of the Pacific
The largest general astronomy society in the world.
International Astronomical Union
Responsible for categories and naming astronomical objects.
National Space Society
Organization dedicated to the creation of a spacefaring civilization.
The Planetary Society
Dedicated to exploring the solar system and seeking life beyond Earth.
Royal Astronomical Society
UK's leading professional body for astronomy & astrophysics, and more.
Royal Astronomical Society of Canada
Dedicated to the advancement of astronomy and allied sciences.
Specializes in the observation of double stars and deep sky objects.
The Night Sky on Paper: Reading a Starmap
Describes how to read an all-sky starmap to locate constellations.
Virtual observatory generating images of the sky at all wavelengths.
Download an all-sky starmap for free every month.
An interactive map of the sky — a virtual, online planetarium!
Presented by the Miami Valley Astronomical Society near Dayton, Ohio.
Astronomy on the Beach
Hosted by the Great Lakes Association of Astronomy Clubs.
Black Forest Star Party
Held at the Cherry Spring State Park Dark Sky Preserve in Pennsylvania.
Eldorado Star Party
Sponsored by the Austin Astronomical Society in Texas.
Grand Canyon Star Party
Sponsored by the Tucson Amateur Astronomy Association.
Great Lakes Star Gaze
Held annually at the River Valley RV Park near Gladwin, Michigan.
Hidden Hallow Star Party
Held by the Richland Astronomical Society in Ohio.
Illinois Dark Skies Star Party
Held at the Jim Edgar Panther Creek State Fish & Wildlife Area.
Nebraska Star Party
Held at Merritt Reservoir near Valentine, Nebraska.
Northeast Astronomy Forum & Telescope Show (NEAF)
Large astronomy expo held by the Rockland Astronomy Club in New York.
Okie-Tex Star Party
Hosted by the Oklahoma City Astronomy Club and held at Camp Billy Joe.
Rocky Mountain Star Stare
Hosted by the Colorado Springs Astronomical Society.
RTMC Astronomy Expo
Held at Camp Oakes, five miles southeast of Big Bear City, California.
Held by the North York Astronomical Association in Ontario, Canada.
Staunton River Star Party
Held at Staunton River State Park in Halifax County, Virginia.
Held by the Springfield Telescope Makers on Breezy Hill in Vermont.
Table Mountain Star Party
Held about 20 miles northwest of Ellensburg, Washington.
Texas Star Party
Held at the Prude Ranch near Fort Davis and McDonald Observatory.
Winter Star Party
Hosted by the Southern Cross Astronomical Society in the Florida Keys.
An interactive visualization of the stellar neighborhood.
American Association of Variable Star Observers (AAVS0)
World-recognized leader in information and data on variable stars.
International Occultation and Timing Association
Provide details on occultation of stars by the Moon, planets, etc.
Journal of Double Star Observations
Electronic journal published quarterly by the University of South Alabama.
Details and images of all known current supernovae.
The Sounds of Pulsars
Listen to the radio pulses of several different pulsars.
Solar and Heliospheric Observatory (SOHO)
Veteran solar probe launched in 1995; operated by NASA & ESA.
Solar Data Analysis Center
Located at NASA Goddard Space Flight Center in Greenbelt, Maryland.
Solar Dynamics Observatory
Designed to understand the Sun's influence on Earth and Near-
Wealth of information by the Marshall Space Flight Center.
Solar Terrestrial Relations Observatory (STEREO)
Two space-based observatories that provide 3D solar images.
The Sun in Motion
IMAX style movies of many solar phenomena.
The Transition Region and Coronal Explorer - a NASA mission.
Clear Sky Chart
Gives a graphical 40 hours forecast specifically for astronomers.
CNN Kalamazoo Forecast
Weather forecast for the Kalamazoo, Michigan area.
Provides animated visible and infrared satellite images.
INTELLICAST Satellite Image
The latest weather data with several satellite images.
Animated wind, rain, temperature maps, and detailed forecast for your location.
The Weather Channel - Kalamazoo Forecast
Weather forecast for the Kalamazoo, Michigan area.
Detailed weather forecasting with an astronomy section.