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Astronomy
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The Celestial Poles and Celestial Equator
Grade Level
Astronomy
AST.037 The Celestial Poles and Celestial Equator
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Which set of labels would be correct for a simple Earth-and-sky diagram?
A
Zenith and nadir are celestial poles; the observer's horizon is the celestial equator.
B
Axis endpoints on the celestial sphere are celestial poles; the projected equator is the celestial equator.
C
Ecliptic endpoints are celestial poles; the local horizon is the celestial equator.
D
Axis endpoints on Earth are the celestial equator; the projected equator is the celestial poles.
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