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Explorations An Introduction to Astronomy, 3/e
Thomas T. Arny


Additional Animations

A Time Exposure of the Northern Sky (2098.0K)
Celestial Sphere (1319.0K)
Different Constellations at Different Times of the Year (3303.0K)
Retrograde Motion of Mars (1833.0K)
Star Rise and Set Caused by Earths Rotation (1266.0K)
The change in number of hours of daylight as seasons change (8030.0K)