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Definition
| the study of the universe |
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Definition
| the belif that the sun is the center of the solar system |
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Definition
| the view that the Earth was the center of the universe (believed for a long time in ancient times and through the 1700s) |
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Definition
| the moition of a body the time it takes for a planet to orbit the sun (365 1/4 days for Earth) |
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Definition
| the spin of the body on its axis(one day on Earth) |
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Definition
| the path that a body follows as it travels around another body in space |
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Definition
| a large cloud of gas and dust in interstellar space; a region in space where stars are born or where stars blow up |
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Definition
| the cloud of gas and dust that formed the solar system |
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Definition
| core, radiactive zone, convective zone, photosphere, chromosphere,corona |
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Definition
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Definition
| one of the high dense planets close to the sun |
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Definition
| a planet that has a deep masive atmosphere |
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Definition
| the counter-clockwise spin of a planet |
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Term
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Definition
| the clockwise spin of a planet |
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Definition
| a natural or artificial body that revoles aound the planet |
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Definition
| when the moon "grows" bigger |
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Term
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Definition
| when the moon "grows" smaller |
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