Archaeoastronomy pinpoints equinox, solstice ...
Track seasonal cusp moments in universal time, according to the Earth's orbit. Includes lessons on the astronomical mechanics of equinoxes, soltices, and cross quarters.
http://www.archaeoastronomy.com/
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StarChild: A Learning Center for Young Astronomers
This site is intended for students in grades K through 8. ... (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/ GSFC. ...
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NASA - JPL Solar System Simulator
Simulated view of any body in the solar system from any location and time in full-color graphics. A NASA/JPL space site.
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simulator
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Skymaps.com - Publication Quality Sky Maps & Star Charts
Quality sky maps (star charts) for stargazing, education and publishing. The Evening Sky Map free each month. Find constellations, planets and comets.
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maps
stars
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Google Sky
No information avaiable
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Microsoft WorldWide Telescope Web Client
This page requires Silverlight 3. ...
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AbsoluteAstronomy.com
General facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects.
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The United States Naval Observatory
The U.S. Naval Observatory is the preeminent authority in the areas of precise time and astronomy.
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time
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Stellarium
Stellarium is planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free.
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software
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opensource
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NASA - Home
There's a problem with your browser or settings. ... Follow this link to skip to the main content. NASA - National Aeronautics and Space Administration ...
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NASA Science - Science Mission Directorate
Research news from NASA.
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