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				Find planets, stars and constellations quickly and easily in the night sky with the AstroViewer night sky map			 
				
					http://www.astroviewer.com/				
							 
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					Images of the planets, the Sun, asteroids, and comets. NASA's Photojournal provides easy access to images from various NASA Solar System exploration missions.				 
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					3D accelerated card with 128 megabytes (MB) RAM; discrete graphics card with ... 1 GB of available hard disk space; 10 GB recommended for off-line features and ...				 
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					The Solar System Exploration Home Page is part of NASA's Office of Space Science and describes NASA's program to explore the solar system.				 
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					... portal is currently online at http://www.usno.navy.mil and is being populated. ... About AA. Information about the department and its history ...				 
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					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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					This page requires Silverlight 3. ...				 
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					Celestia, a real-time 3D space simulation featuring a database of over 100,000 ... Welcome to Celestia ... Celestia runs on Windows, Linux, and Mac OS X. ...				 
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					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.				 
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