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| arrangement of stars that make a distinct pattern in the sky |
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| North Star, around which all other rotate, located in the handle of the Dipper |
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| the two ends of the Big Dipper used to locate Polaris |
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| any point in the sky which is directly overhead |
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| any point directly opposite zenith |
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| the temporary blocking of light of one object by another (solar/lunar) |
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| gradual cyclic change in illumination of the Moon every month. On order: new, waxing crescent, waxing quarter, waxing gibbous, full, waning, gibbour, waning quarter, waning crescent, and back to new |
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| nuclear reaction in the Sun, turning 4 hydrogens into 1 heliu and energy. |
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| the collision with Earth I, resulting in the moon being formed. |
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| Theory that all matter came from one point in space from one explosion, resulting in all the solar systems, galazies, and other debris and structures we now find in space |
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| theory that all the universe revolves around us |
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| theory that we and the rest of the planets revolve around the sun |
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| cluster of stars, eitheir in the formation of spiral, elliptical, or irregular |
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| all space and everything in it including solar systems and galaxies |
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| the study of energy waves as the source approaches you or goes away from you used to explain our expanding universe |
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| observable phenomena in which all objects in space emit light that shifts in its visible light spectrum to the red side of the spectrum, indication object is moving away |
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| the study of the motion of Earth and other celestial objects in space |
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