COROT-7c [SEP] constellation
COROT-7c
COROT-7c is an extrasolar planet which orbits the G-type main sequence star COROT-7, located approximately 489 light years away in the constellation Monoceros. It's either a super-Earth or a Neptune-like planet, orbiting at 0.046 AU from the star, taking 3.7 days or 89 hours to make one round trip around the star.
Discovery.
The discovery of the planet was announced in February 2009, during the First Corot Symposium. It was discovered during the follow-up started in order to confirm
Like COROT-7b, the mass of COROT-7c is weakly constrained, since the radial velocity data is noisy due to the presence of stellar activity. Published mass measurements range from 8.4 Earth masses to 13.5 Earth masses, passing through 12.4 Earth masses and 13.1 Earth masses. This mass range encompasses the Super-Earths to Neptunes transition, so the nature of COROT-7c, either a rocky planet or an ice giant, remains unclear. However, if the larger mass estimates are correct, COROT-7c is probably a hot Uranus-like planet.