CoRoT-21b

CoRoT-21b is a transiting exoplanet reportedly found by the CoRoT space telescope in 2011. Planetary parameters were published in 2012.

It is an extremely hot Jupiter-like planet with an orbital period of 2.72 earth days. It has a mass equivalent to 2.26, a radius of 1.3 , and a density of 1.37 g/cm3.

The planet is experiencing extreme tidal forces, forcing its orbit to decay within 800 million years from now.

Host star
CoRoT-21b orbits CoRoT-21 in the constellation of Monoceros. It is an F-type subgiant star (spectral type F8IV) with an effective temperature of 6200 K, a mass of 1.29, a radius of 1.945 , and a near-solar metallicity. It has an estimated age between 3.6 and 4.6 Gyr.