Red dwarf (M2.5 V)

K2-18

A red dwarf 124 light years away, with 2 known planets.

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Distance: 124 light years
Surface: 3,184 °C
Size: 0.4 × the Sun
Known planets: 2

Outer layers

H 73%
He 25%
O, C, Fe and heavier 2%

Cool enough for titanium oxide and water molecules in its outer layers

Modelled from typical stellar abundances

Nearby in the guide