Term
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Definition
| sun, its family of planets, asteroids, comets etc |
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Definition
| small luminous bodies that shine by reflecting sunlight |
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Term
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Definition
| average distance from the earth to the sun |
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Term
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Definition
| the distance light travels in one year |
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Term
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Definition
| great cloud of stars, gas, and dust bound together by gravity of all the matter |
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Term
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Definition
| dust and gas passing through the spiral arms of a galaxy |
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Term
| how many constellations are there? what do they represent? |
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Definition
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Term
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Definition
| less formally defined groups (big dipper) |
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Term
| what is assigned to stars in the order of brightness? |
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Definition
| greek letters; alpha Canis Major |
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Term
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Definition
| measure the brightness of stars, brightest are first magnitude. |
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Term
| apparent visual magnitudes |
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Definition
| describing how a star's brightness looks with the naked eye, system of magnitude scale |
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