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How big is a brown dwarf?

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Answer:

Brown dwarfs are "stars" too low in mass to sustain stable hydrogen fusion. They are fairly common but difficult to study.

The upper limit to the size of a brown dwarf is about 75 -> 80 times the size of Jupiter.

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First answer by Cosmospup. Last edit by Cosmospup. Contributor trust: 851 [recommend contributor ]. Question popularity: 2 [recommend question].

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