We provide here a collection of useful links related to astronomy. DFAC assumes no responsibility for the content of these linked sites. They are provided in the spirit of shared information. We hope you find them interesting and useful. If you discover any broken links, please notify our Webmaster.

NOTE: DO NOT SEND SUGGESTIONS FOR NEW LINKS. Our webmaster will reject them. Too much time has been wasted reviewing “astronomy websites” that are nothing more than single pages on commercial websites. With a few notable exceptions, our astronomy links are free of advertising and other distractions. We’ll research and select our own resources, thank you.

The Astronomical LeagueA club for astronomy clubs
Desert Foothills Astronomy Club (DFAC)Serving the north Phoenix metro area
East Valley Astronomy Club (EVAC)Serving the east Phoenix metro area
Phoenix Astronomical Society (PAS)Serving the central Phoenix metro area
Saguaro Astronomy Club (SAC)Serving the greater Phoenix metro area
West Valley Astronomy Club (WVAC)Serving the west Phoenix area.
Astronomers of Verde Valley (Astroverde)Serving central Arizona
International Dark-Sky Association (IDA)Global movement against light pollution
Astronomical Society of the PacificAdvancing science literacy through astronomy
The Planetary SocietyEmpowering citizens to advance space science
New River / Desert Hills Community Association (NRDHCA)Arizona advocate for Sonoran Desert preservation
NASA home pageMain NASA portal - sublinks follow
Space PlaceEducational resources for educators & students
Spot the ISSWhere and when to see the International Space station
News updatesBreaking news from NASA
MultimediaVideos, audios, images, graphics, text
Astronomy Picture of the Day (APOD)Beautiful astronomy images with your morning coffee
Hubble Space TelescopeHST home page
USGS AstrogeologyEverything astrogeological
JPL HorizonsEphemeris generator
SOHO solar imagesSee Mr. Sun in (almost) real-time
Northern LightsLive from Yellowknife, Canada
Earth in HD from the ISSEarth as seen from the International Space Station
Kitt Peak National ObservatoryKPNO 24/7 webcam
Sky LightsAstronomy, meteorology, and earth science blog
Solar System LiveInteractive virtual Solar System orrerey
The Inconstant MoonAll things lunar
SIMBADUltimate astronomical database
Astronomy GlossaryAll the words you need to know
Astrometry.netUpload a starfield image and ID its constituents
Encyclopedia of ScienceAll things science
Stargazing for EveryoneAstronomy Services by Tony & Carole La Conte
Atmospheric OpticsLuminous phenomena in the atmosphere - explained
Dark Sky InitiativeStargeezer's rant
StarDateMcDonald Observatory blog and podcast
Year in SpaceAstronomy events updated weekly
Free Astronomy SoftwareIt's all here, and it's all open source
Arizona darksky sitesDarkest skies in Arizona, by Howard Anderson (EVAC)
Cloudy Nights ClassifiedsBuy, sell, and trade all things astronomical
Best Telescopes for BeginnersGreat starter scopes for under $1000
Google SkyAstronomy plug-in for Google Earth
Cartes du CielOpen source digital planetarium, 5/5 stars rating
StellariumOpen source digital planetarium, 4.5/5 stars rating
Binocular reviewsComprehensive reviews of all binocular brands
Day/Night global mapBeautiful simulation of day/night on Earth in real-time
Astronomy & Space educationPortal to astronomy education resources for all ages
Planets for KidsAstronomy education activities for K-8
International Space StationBeautiful interactive 3D model of the ISS
The Ultimate Beginner’s Guide to AstronomyJust getting into astronomy? Read this helpful guide first.
Space EducationAstronomy links for K-12 & adults
Love The Night SkyExtensive collection of astronomy resources
Astronomy posters/art/prints100,000 classic and modern works to peruse