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4
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sun and all the planets that travel around it
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7
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end of a high mass (not a black hole)
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8
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small dim star; end of a low mass star life cycle
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9
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actual brightness of a star
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10
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gigantic explosion in which massive stars throw out their outer layer
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11
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large cloud of gas and dust in space; region where stars are born
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12
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distance light travels in one year; 9.46 trillion km
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1
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collection of stars and dust bound together by gravity
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2
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large spherical body that orbits a star
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3
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category of 90% of all stars; our sun belongs here
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5
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large celestial body composed of gas and emits light; ours is called the Sun
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6
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diagram that shows relationship between stars luminosity and temperature
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