CoRoT-21b
Discovery
Discovered byCoRoT space telescope
Transit
Orbital characteristics
0.0417 AU (6,240,000 km)[1]
Eccentricity0
2.72474[1] d
Inclination86.8[1]
StarCoRoT-21
Physical characteristics
Mean radius
1.3 RJ
Mass2.26MJ
Temperature1857 K[2]

CoRoT-21b is a transiting exoplanet reportedly found by the CoRoT space 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. Its mass is equivalent to 2.26 Jupiter masses, 1.3 Jupiter radius, and has a density of 1.37 g/cm3.

The planet is experiencing an extreme tidal forces forcing its orbit to decay within 800 million years from now.[4]

Host star

CoRoT-21b orbits CoRoT-21 in the constellation of Monoceros. It is a F8IV star with Te = 6200K, M = 1.29M☉, R = 1.945R☉, and near-solar metallicity. It has an estimated age between 3.6 and 4.6 Gyr.

References

  1. ^ a b c "Notes on CoRoT-21 b". Extrasolar Planets Encyclopaedia. Retrieved February 25, 2019.
  2. ^ "COROT-21 Planets in the system". Retrieved February 25, 2019.
  3. ^ Parviainen, H.; Deeg, H. J.; Belmonte, J. A. (2012), "Secondary eclipses in the CoRoT light curves", Astronomy & Astrophysics, 550: A67, arXiv:1211.5361, doi:10.1051/0004-6361/201220081, S2CID 54985515
  4. ^ Transiting exoplanets from the CoRoT space mission XXIII. CoRoT-21b: a doomed large Jupiter around a faint subgiant star


Categories