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| The measure of a star of the amount of light it gives off |
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| A measure of light recieved by the star on Earth |
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| Distance that light travels in one year |
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| The layer that extrends upward about 2,000 km above the photosphere |
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| Largest layer of the Sun's atmosphere |
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| Areas of the Sun's surface that appear darker because they are cooler then surrounding areas |
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| The hot dense core left from a Giant. About the size of Earth |
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| , when heavier elements form by fusions, it expands into a supergiant |
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| A shrunken supernova where only neutrons exist in the core |
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| The core of a supernove that collapses where light cannot escape |
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| A large group of stars, gas, and dust held together by gravity |
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