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Transit · 2014

Kepler-300 b

This world receives 265× the starlight Earth does; a year lasts 10.4 days; the light you see left it 3.58 thousand years ago.

Opens the PlanetHunt visor at this world · WebGL
Size
1.7 × Earth 
A year
10.4 days0.094 AU
Temperature
539 °C812 K

About this world

Kepler-300 b is a super-Earth orbiting Kepler-300, a yellow, Sun-like star 3.58 thousand light-years from Earth. It is about 1.7 times the size of Earth. It completes an orbit every 10.4 days at 0.094 AU from its star, closer than Mercury is to the Sun.

Its equilibrium temperature is about 812 K (539 °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 2014 by transit with Kepler. A planet crosses its star and dims it by a tiny, periodic fraction. Kepler-300 has 2 known planets; the others are Kepler-300 c.

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