| equatorial plane |
| 23.5° |
| ecliptic |
| N.P. |
| 5° |
| moon’s orbit |
|
|
|
|
|
|
|
| Stars
are very distant (Proxima Centauri 1.3 pc 4.3 lyrs) |
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| “
Project” stars onto spherical surface with Earth at center |
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| Sun
appears to move through constellations |
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| |
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| Celestial Sphere |
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