Brown dwarf

A brown dwarf is a celestial object that can neither be categorized as a star or a planet. It is a substellar (a body that is smaller than a typical star) object that lacks the necessary mass to start nuclear fusion in its core and become a star.
The mass of a typical brown dwarf may range from 13 times the mass of Jupiter to about 70 times. Its temperature is either as high as around 2,000 degrees Celsius or as low as -200 degrees Celsius. Brown dwarfs appear in different colors based on their temperature. The warmest are possibly orange or red and the coolest are magenta.


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