How can I define stars
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Stars A star is a sphere of gas held together by its own gravity. The closest star to Earth is our very own Sun, so we have an example nearby that astronomers can study in detail. The lessons we learn about the Sun can be applied to other stars.
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(Entry 1 of 3) 1a : a natural luminous body visible in the sky especially at night. b : a self-luminous gaseous spheroidal celestial body of great mass which produces energy by means of nuclear fusion reactions.
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