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Astronomy
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Absolute Astronomy
Facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects.
http://www.absoluteastronomy.com/
AbsoluteAstronomy.com
General facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects.
http://www.absoluteastronomy.com/
Adler Planetarium and Astronomy Museum
Interprets the exploration of the Universe for the broadest possible audience and hosts one of the finest collections of early astronomical instruments in the world.
http://www.adlerplanetarium.org/
An Introduction to Astronomy
Learn about astronomy; goes into lots of details, and also has lots of astro-clip art.
http://www.exploretheuniverse.net
Astro Watch
Guide to astronomy facts including facts on stars, planets, comets, quasars, and black holes.
http://www.astro-watch.com/
Astrolabe: An Instrument With a Past and a Future
Provides photographs, diagrams, and the history of the astrolabe, an instrument used by early astronomers for solving problems relating to time and the position of the stars.
http://www.astrolabes.org/
Astronomy Net
Resources, searchable forums and searchable lists of organizations providing astronomy services.
http://www.astronomy.net/
Astronomy Sight
In-depth, concise website about astronomy from Crowell Observatory.
http://www.astronomysight.com/
Astronomy Today
Articles on astronomy, cosmology and space exploration, with a regularly updated sky guide and the latest space news.
http://www.astronomytoday.com/
Astronomy-Watch
Provides nightly events, news, and information about space and space missions for amateur astronomers.
http://www.astronomy-watch.com/
AstronomyDaily.com
Offers real time astronomical data tailored to the viewer's location and time zone.
http://www.astronomydaily.com/
Deep-Sky.Org
Provides information and images, including a complete Messier object reference, telescope articles, and deep-sky links.
http://www.deep-sky.org/
Hands On Universe
Enables students to investigate the Universe while applying tools and concepts from science, math, and technology.
http://www.handsonuniverse.org/
ICSTARS Astronomy
Pictures, stories, past and present events, and solar activity reports.
http://www.icstars.com/
Nick Strobel's Astronomy Notes
Complete astonomy textbook for first-year college courses.
http://www.astronomynotes.com/
Night Sky Live
Catch a glimpse of the night sky above some of the world's premier observatories.
http://www.concam.net/
Planetary Nebula Observer's Home Page
Data, images, links, and observing techniques for planetary nebula.
http://www.blackskies.com/
PlanetDiary
Presents weekly geological, astronomical, meteorological, biological, and environmental news from around the globe.
http://www.planetdiary.com/
Sea and Sky
Explore the splendors of the sea and the wonders of the universe through information, images, sounds, links, and interactive games.
http://www.seasky.org/
Sky View Cafe 3.0
Java applet that lets you use your web browser to see many types of astronomical information, in both graphical and numerical form.
http://www.skyviewcafe.com/

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