Models of the Sky

Models of the Sky - Models of the Sky - Celestial Sphere...

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Models of the Sky - Celestial Sphere Now we're going to do some fun things with objects on your meridian - and believe me, you'll want to pay close attention to this stuff since you can be guaranteed that it will be on the test. Let's get cracking! Now remember that at the North Celestial pole you would find the Pole star (Polaris). Since it is at the Celestial North Pole, it is at a dec=90º N. Okay, that's pretty easy. If you were to stand on the Earth's North Pole, Polaris is at your zenith (or you could say that it is 90º above the horizon). See Figure 6. Being at the North Pole is not much fun, since it is so dang cold. Let's go somewhere warmer, like the Equator. If you were to stand on the Earth's Equator, Polaris is no longer at your zenith, it is on the horizon (or you could say 0º above the horizon). This is illustrated in Figure 7. Figure 6. When you are at the North Pole, Polaris is over your head.
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Models of the Sky - Models of the Sky - Celestial Sphere...

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