answersLogoWhite

0

The minimum size of a planet is generally considered to be around 0.08 times the mass of Jupiter, or about 80 times the mass of Earth, which is approximately 13 times the mass of Neptune. Below this threshold, an object is not massive enough to sustain hydrogen fusion, leading to classifications as brown dwarfs rather than planets. However, in terms of diameter, a celestial body needs to be large enough for gravity to shape it into a nearly round form, which typically requires a radius of at least a few hundred kilometers.

User Avatar

AnswerBot

2w ago

What else can I help you with?