Question

what is brown dwarf ???

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Answer 1

Explanation:

Brown dwarfs are substellar objects that are not massive enough to sustain nuclear fusion of ordinary hydrogen into helium in their cores, unlike main sequence stars. They have a mass between the most massive gas giant planets and the least massive stars, approximately 13 to 80 times that of Jupiter

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Answer 2

Explanation:

A celestial object intermediate in size between a giant planet and a small star, believed to emit mainly infrared radiation.