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cool red dwarf · M0V

Kepler-309

Kepler-309 is a cool red dwarf 1.78 thousand light-years from Earth, with a temperature of 4,713 K, 0.82 times the Sun's mass and an age of about 3 billion years. It has 2 known planets.

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Planets
2 
Distance
1.78 thousand light-years545 pc
Star
4,713 K0.72 R☉

About this system

The innermost, Kepler-309 b, circles it in 5.92 days; the outermost, Kepler-309 c, in 105 days.

Worlds of Kepler-309

NameTypeSizeA yearTemperature
Kepler-309 bSuper-Earth 1.6 × Earth5.92 days531 K
Kepler-309 cSub-Neptune 2.5 × Earth105 days204 K