- Earth and Universe
[IA][Direct] - A comprehensive multimedia guide to Stars and Galaxies. - Eric's Treasure Trove of Astronomy
[IA][Direct] - On-line encyclopedia of astronomy formulas and derivations. - Aboriginal (Native American Indian) Astronomy [IA][Direct] - Lakota constellations ceremonially mapped to Black Hills; 4,000-year-old stone Medicine Wheels first observatories. Starmaps, stargazing aids, teaching resources.
- ADS Astronomy and Astrophysics Abstract Service [IA][Direct] - Searchable database of abstracts provided to us by NASA's Science and Technical Information group.
- Adventures in Astronomy [IA][Direct] - Designed for amateur and professional people interested in Astronomy.
- Amateur Astrophotography (in German) [IA][Direct] - Amateur astrophotography tips and ideas from personal experience. Some demo pictures.
- Ask the Astronomer [IA][Direct] - Do you have any questions about astronomy? Cosmology, solar system topics, careers, plus much more.
- AstroNet [IA][Direct] - Amateur astro-digest, links to hundreds of clubs, astro-sites, shareware, products, amateur art, ccds and photos.
- Astronomical Site [Massimo Dionisi]
[IA][Direct] - Images, astronomical software, amateur astronomer resources and links. - #astronomy [IA][Direct]
- Astronomy and Astrophysics at NSSDC [IA][Direct]
- Astronomy Cafe [IA][Direct] - Hotkeys to the stars, book on a career in astronomy, Ask the Astronomer Q/A, links to data/images. Software for manipulating data for Science Fair Projects.
- Astronomy HyperText Book [IA][Direct]
- Astronomy in Japan [IA][Direct] - Amateur Activities, History, and Starlore of Astronomy in Japan (English Based).
- Astronomy Scope [IA][Direct] - Three-dimensional user interface to the newest images available in the astromony world from Hubble images to probes on Jupiter.
- Astronomy Thesaurus [IA][Direct] - Astronomy terms in English, French, German, Spanish and Italian; all terms cross referenced.
- Astronomy - What's Up This Month [IA][Direct] - Monthly updates on astronomical events, star charts for the month, photos, charts, and more.
- AstroWebVienna [IA][Direct]
- Black Holes and Mysteries of the Cosmos
[IA][Direct] - Collection of ideas and opinions about black holes and the mysteries of the cosmos including: chaos theory, quantum theory, the universe, the cosmos, and the Big Bang. - Conjunctions MP/NGC IC [IA][Direct] - Conjunctions between minor planets and objects of the NGC 2000 catalogue.
- Constellation of the Month [IA][Direct]
- Constellations and their Stars, The [IA][Direct] - Statistics, history, mythology for all 88 constellations and the named stars in them; also contains info on Messier objects; some star charts included.
- Dennis Ward's Silicon Sky [IA][Direct] - Be sure to check out the interactive comet observation notebook featuring Comet Hale-Bopp.
- FAQ sci.astro [IA][Direct] - Sci.astro is a newsgroup devoted to the science of astronomy. Its content ranges from the Earth to the farthest reaches of the Universe. This document answers frequent questions about astronomy.
- Farley Supernova Page [IA][Direct]
- Galactic PNe data base Innsbruck [IA][Direct]
- GalacticSky Charts [IA][Direct] - Clickable charts that allow you to view different star patterns according to where you are in the world.
- Global Oscillation Network Group [IA][Direct] - A community-based program to conduct a detailed study of solar internal structure and dynamics using helioseismology.
- Hagen, Volkssternwarte e. V. - Arbeitsgemeinschaft [IA][Direct]
- Home of BAV [IA][Direct] - Information about variable stars (german language).
- Icarus [IA][Direct] - International Journal of Solar System Exploration
- Imstar [IA][Direct] - Astronomy links and some of our own CCD images
- Information Center for New Star Gazers [IA][Direct] - A beginners guide to astronomy as a hobby.
- Izzy's Skylog [IA][Direct]
- Livonia Causeway [IA][Direct] - Local weather and a clickable map of Livonia. A large database on the planets and space probes, several links to NASA and space related sites. Macintosh software.
- Marfa Mystery Lights [IA][Direct] - Information on these ghost lights located in far West Texas; download the video to get a look at these mysterious lights that have roamed for over for over a century.
- Mayan Astronomy [IA][Direct]
- Munich Astronomical Archive [IA][Direct] - Data on astronomical objects.
- NASA's Origins Program [IA][Direct] - Our search for the origins of galaxies and stars, for Earth-like planets, and perhaps even signs of life around nearby star systems.
- Nova Country [IA][Direct] - This server is devoted to professional and amateur astronomers working in Novae, Supernovae, and other Cataclysmic Variables. Discovery announcements, observational reports and communications are updated hourly. Cool pictures too!.
- PC vs Mac Wars [IA][Direct] - Webchat Broadcasting System Channel
- Pleiades, The [IA][Direct]
- Radio Pulsar Resources [IA][Direct]
- Rufus's Galaxy [IA][Direct] - The Steady State Galaxy Theory, an alternative to the Big Bang Theory.
- Sky Haven Observatory [IA][Direct] - Jim Hendrickson's astronomy and astrophotography page.
- SpaceLink [IA][Direct]
- Starman [IA][Direct] - By Jay Ryan, a comic strip of astronomy, designed to teach the natural secrets of the sky in an entertaining manner.
- Star*s Family [IA][Direct] - Growing collection of directories, dictionaries, databases and related products on astronomy, space sciences, and related fields and orgs of the world.
- StarTrax-NGB: The HEASARC Browse [IA][Direct]
- Strasbourg astronomical data center [IA][Direct]
- Tyee HS's Astronomy [IA][Direct] - Student site.
- Web Window to the Invisible Universe [IA][Direct] - A view into the invisible universe as seen through two of the world's largest radio telescopes.
- Whitney's Star Finder [IA][Direct] - A window on the sky for the casual observer, for the amateur astronomer, and for the student.
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