The borderline between the most massive planet and the least massive brown dwarf is thought to occur at around
A) 4 Jupiter masses.
B) 13 Jupiter masses.
C) 120 Jupiter masses.
D) 80 Jupiter masses.
E) 45 Jupiter masses.

Question

Quizplus · Accepted Answer

The borderline between the most massive planet and the least massive brown dwarf is generally considered to be around 13 Jupiter masses, as this is the mass at which deuterium fusion can occur, a characteristic of brown dwarfs.

The Borderline Between the Most Massive Planet and the Least