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Brown Dwarf Comparison
Ssc2020 09b

Credit: NASA/JPL-Caltech

Artwork • April 9th, 2020 • ssc2020-09b


Brown dwarfs are more massive than planets but not quite as massive as stars. Generally speaking, they have between 13 and 80 times the mass of Jupiter. A brown dwarf becomes a star if its core pressure gets high enough to start nuclear fusion.

About the Object