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CoRoT-7 (TYC 4799-1733-1) is a binary star system made up of a late G-type star [1] and a M-dwarf star that was discovered in 2021. [3] The primary star has three exoplanets, [5] including CoRoT-7b, a super-Earth exoplanet that is remarkable due to its extremely high temperature (around 2000 °C) and very short orbital period, around 20 hours.
CoRoT-7b (previously named CoRoT-Exo-7b) [3] [4] is an exoplanet orbiting the star CoRoT-7 in the constellation of Monoceros, 489 light-years (150 parsecs) from Earth. It was first detected photometrically by the French-led CoRoT mission and reported in February 2009. [ 5 ]
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 is 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.
CoRot-7b, with a radius of 1.7 R Earth and a mass of 7.3 M Earth, was the first confirmed rocky planet, with a density and composition which are close to those of the Earth. Artist's impression of CoRoT-7b, the first rocky Super-Earth ever discovered thanks to a good estimate of its size and mass and therefore its density.
Illustration of the inferred size of the super-Earth CoRoT-7b (center) in comparison with Earth and Neptune. A Super-Earth or super-terran or super-tellurian is a type of exoplanet with a mass higher than Earth, but substantially below those of the Solar System's ice giants, Uranus and Neptune, which are 14.5 and 17.1 times Earth's, respectively. [1]
7.6: 7: Planets d, e, f and g are potentially habitable. Only star known with exactly seven confirmed planets. All seven terrestrial planets lie within only 0.07 AU of the star. 55 Cancri: Cancer: 08 h 52 m 35.81 s +28° 19′ 50.9″ 5.95: 40: K0IV-V: 1.026: 5217: 7.4: 5: All five known planets orbit around star A (none are circumbinary or ...
NASA: 7 Earth-sized planets discovered, 'second Earth' not a 'matter of if but when' William Steakin. February 22, 2017 at 10:53 AM.
CoRoT-7b is the first exoplanet found that might be chthonian. [7] [8] Other researchers dispute this, and conclude CoRoT-7b was always a rocky planet and not the eroded core of a gas or ice giant, [9] due to the young age of the star system.