View the sky and celestial objects. 3-D card and Open GL required.
Determine which part of a planetary surface is visible.
NASA has released a viewer program, World Wind, that allows for graphical
displays of the Earth, our Moon, and planets in the solar system at a remarkable level
of detail. Data for the program comes from a variety of satellites, and other
sources. The program works best with fast computers, having a newer graphical display
card and a fast internet connection.
http://worldwind.arc.nasa.gov/.
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Create your own Sundials for any latitude using this program
Determine the central meridian and angular size of Mars using
this Freeware program
Download this Freeware program for modeling the Solar System
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