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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 the existence of COROT-7b, a super-Earth uncovered by the COROT mission. However, unlike COROT-7b, it was not detected by the transit method from the COROT satellite, but only by the radial velocity method using HARPS from La Silla Observatory, Chile. A posteriori search of transits of COROT-7c in the lightcurve of the star COROT-7 yielded a negative result, confirming the planet is not transiting. As a consequence no radius measurement is available, and no density and structure models of the planet can be established.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「COROT-7c」の詳細全文を読む
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