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Transit · 2018

K2-205 b

This world receives 53× the starlight Earth does; a year lasts 26.7 days; the light you see left it 1.32 thousand years ago.

Opens the PlanetHunt visor at this world · WebGL
Size
2 × Earth 
A year
26.7 days0.172 AU
Temperature
478 °C752 K

About this world

K2-205 b is a super-Earth orbiting K2-205, a yellow, Sun-like star 1.32 thousand light-years from Earth. It is about 2 times the size of Earth. It completes an orbit every 26.7 days at 0.17 AU from its star, closer than Mercury is to the Sun.

Its equilibrium temperature is about 752 K (478 °C): far too hot for liquid water on its surface. By the "cosmic shoreline", its star has probably stripped its atmosphere away, leaving bare rock.

It was discovered in 2018 by transit with K2. A planet crosses its star and dims it by a tiny, periodic fraction.

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