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cool red dwarf · M

GJ 163

GJ 163 is a cool red dwarf 49.3 light-years from Earth, with a temperature of 3,500 K, 0.4 times the Sun's mass and an age of about 6 billion years. It has 3 known planets.

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Planets
3 
Distance
49.3 light-years15.1 pc
Star
3,500 K0.41 R☉

About this system

The innermost, GJ 163 b, circles it in 8.63 days; the outermost, GJ 163 d, in 604 days. One of them lies in the habitable zone: GJ 163 c.

Worlds of GJ 163

NameTypeSizeA yearTemperature
GJ 163 bSub-Neptune 3.3 × Earth8.63 days438 K
GJ 163 cSub-Neptune 2.5 × Earth25.6 days305 K
GJ 163 dNeptune-like 5.9 × Earth604 days106 K