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The Celestial Sphere
(the Celestial Sphere, as the simplest way of showing the motion of the sky; comparison to planetarium dome)
The Celestial Sphere
(discussion of the positions and labels on the Celestial Sphere, as in the diagram above)
(discussion and diagram(s?) showing how the position of the NCP/SCP/CE depends upon latitude -- mention of flattened dome of sky, and link to Moon Illusion; mention of various ways of defining coordinate systems on the CS, and link(s))
(rising of stars to east of Meridian, setting of stars to west of Meridian, etc?) (animation showing motion of Earth to east, and apparent resulting motion of stars to west, as in class; discussion of W horizon rising, E horizon setting (park bench?))
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