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Definition
| patterns and stars in the night sky. |
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| the amount of light a star give off. |
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| the amount of light from a star recieved on Earth. |
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| the distance light travels in one year. |
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Definition
| the lowest layer of the Sun's atmosphere and the layer from which light is given off. |
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| the layer of he Sun that extends upward about 2000 kilometers above the photosphere. |
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Definition
| largestlayer of the Sun's atmosphere. |
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Definition
| areas of the Sun surface that appear dark because they are cooler than surrounding areas. |
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| a large cloud of gas and dust. |
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Definition
| a star in the late stage of its life cycle. |
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Definition
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Definition
| heavier and heavier elements form by defusion and the star expands. |
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Definition
| only neutrons can exist in the dense core. |
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Definition
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Definition
| large group of stars gases and dust held together by gravity. |
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Definition
| theory about the formation of the universe. |
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