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| most common object we see in the night sky. they seem to twinkle because the Earth's atmosphere refracts, or redirects the ray of light. |
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| appear as disks when magnified with binoculars or a telescope. much smaller than stars. |
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| closest object to earth. the phase of the moon changes according to how much light it is able to reflect. |
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| move quickly across the night sky and often appear to blink regularly. most satellites take about 90 mins to orbit the earth. |
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| are small bright objects that speed across the sky for a few seconds and appear to leave a trail. often mistakenly called shooting stars or falling starts, but they are not stars at all. they are pieces of rock that are falling through the atmosphere and usually burn up before they hit the ground |
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| meteors that reach the earth's surface. |
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| are collections of billions of stars. |
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| groupings of stars in the night sky internationally known in a familiar. |
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| are also grouping of starts, but it is not internationally known, and it is not an official constellation. |
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