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6 Cards in this Set
- Front
- Back
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Constellation
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a group of stars that form a pattern in the night sky
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Axis
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an imaginary rod stretching through the planet between the North and South poles
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Rotation
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the Earth takes 24 hours to turn completely around
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Revolution
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the distance Earth travels in it's orbit (it takes 365 days)
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Star
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a huge glob of hot gases that shines by it's own light. The Sun is a star. It just appears bigger because it's much closer
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Planet
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a large object that circles a star and does not produce a light of it's own. We can only see planets because they reflect sunlight
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