PlanetHunt
PlanetHunt › Explore › K2-147 b
Transit · 2018

K2-147 b

This world receives 200× the starlight Earth does; a year lasts 23.1 hours; the light you see left it 295 years ago.

Opens the PlanetHunt visor at this world · WebGL
Size
1.5 × Earth 
A year
23.1 hours0.0158 AU
Temperature
804 °C1,077 K

About this world

K2-147 b is a super-Earth orbiting K2-147, a cool red dwarf 295 light-years from Earth. It is about 1.5 times the size of Earth. It completes an orbit every 23.1 hours at 0.016 AU from its star, closer than Mercury is to the Sun, on a strongly elongated orbit (e = 0.38).

Its equilibrium temperature is about 1,077 K (804 °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.

Explore more