CoRoT-21b is a transiting exoplanet reportedly found by the CoRoTspace telescope in 2011. Planetary parameters were published in 2012.[3]
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 MJ, a radius of 1.3 RJ, 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.[4]
CoRoT-21b orbits CoRoT-21 in the constellation of Monoceros. It is an F-typesubgiant star (spectral type F8IV) with an effective temperature of 6,200 K (5,930 °C; 10,700 °F), a mass of 1.29 M☉, a radius of 1.945 R☉, and a near-solar metallicity. It has an estimated age between 3.6 and 4.6 Gyr.
