Academic Departments
 Calendars and Timekeeping
 Data Archives

 Eclipses, Occultations and Transits
 Extrasolar Planets
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Astronomy Sites

Science Astronomy
Science Astronomy sites
Science Astronomy
Science Astronomy sites
A Review of the Universe: Structures, Evolutions, Observations, and Theories
A retired physicist surveys the entire extent of the universe touching upon phenomenon from the largest to the smallest size and covering the entire cosmic interval from past to present.
Absolute Astronomy
Facts and statistical information about planets , moons , constellations , stars , galaxies , and Messier objects.
An Atlas of the Universe
Contains 3D maps of the universe zooming out from the nearest stars to the scale of the galaxy and out to the surrounding superclusters and finally to the scale of the known universe.
Astronomical Applications Department, U. S. Naval Observatory
Computes the position , brightness , and other observable characteristics of celestial bodies , as well as the circumstances of astronomical phenomena. Includes information on calendars and related topics.
Astronomical Optical Interferometry
The use of multiple telescopes to produce high resolution images - commonly used at most modern observatories. A literature review article.
Astronomical Pseudo-Science: A Skeptic's Resource List
List of links for those , who want to examine theories that are on the fringe of accepted scientific thought that are related connected to astronomy. A few examples are astrology , UFO's , the "Face" on Mars , and ancient astronaut theory.
Introductory article provided by Citizendium , a developing encyclopedia project.
Astronomy Education and Outreach
General astronomy tutorial , education links , web courses , documents at the UCSD Center for Astrophysics and Space Sciences.
Astronomy Facts and Trivia
Fun facts and trivia relating to astronomy , space , science fiction movies. Most trivia items are submitted by users.
Astronomy Online
Gives overview of the solar system , the Milky Way galaxy , extrasolar planets , cosmology and astrophotography. Includes images , additional resources , and forums.
Astronomy Today
Information and articles on astronomy , space and related topics. Also features a friendly forum and a telescope buyer's FAQ page.
Astronomical internet resources from the National Radio Astronomy Observatory.
Cosmos Portal
Offers information on astronomy and space science including news , events , blogs , images , videos and links to other sites. It is written and compiled by experts.
Eric Weisstein's World of Astronomy
A web encyclopedia. Over 500 entries , ranging from definitions to full articles.
Infrared Astronomy
All about infrared astronomy from NASA's infrared astronomy center: Discovery of infrared , what is infrared and infrared astronomy , history , the infrared universe , gallery , activities , discoveries , missions and a lot of links to IR astronomy sites.



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