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cool red dwarf · M0

GJ 3138

GJ 3138 is a cool red dwarf 92.9 light-years from Earth, with a temperature of 3,717 K and 0.68 times the Sun's mass. It has 3 known planets.

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Planets
3 
Distance
92.9 light-years28.5 pc
Star
3,717 K0.5 R☉

About this system

The innermost, GJ 3138 b, circles it in 1.22 days; the outermost, GJ 3138 d, in 258 days.

Worlds of GJ 3138

NameTypeSizeA yearTemperature
GJ 3138 bEarth-sized 1.2 × Earth1.22 days903 K
GJ 3138 cSuper-Earth 1.9 × Earth5.97 days531 K
GJ 3138 dSub-Neptune 3.2 × Earth258 days152 K