Operating system


The Nineplanets

4
Average: 4 (1 vote)
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Planets: Key of the View of our World (Project-Based Learning)

4.272725
Average: 4.3 (11 votes)
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Celestial Coordinate Systems _interactive sky chart

4.333335
Average: 4.3 (3 votes)
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Celestial Coordinate Systems _flash animation_2

0
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Celestial Coordinate Systems _flash animation

0
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Celestial Coordinate Systems - Powerpoint

0
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Celestial Coordinate Systems (Learning Cycle)

4.25
Average: 4.3 (8 votes)
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Stellarium_Software (freeware)

5
Average: 5 (1 vote)
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horizontalsystem

0
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Aequator coordinates system

3
Average: 3 (2 votes)
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