COROT-1b (previously named COROT-Exo-1b) is an extrasolar planet approximately 1,560 light-years away in the constellation of Monoceros. The planet was discovered orbiting the yellow dwarf star COROT-1 in May 2007. The planet was the first discovery by the French-led COROT Mission.

Read more about COROT-1b:  Detection and Discovery, Observation of Phases

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COROT-1b - Observation of Phases
... In May 2009 COROT-1b became the first extrasolar planet for which optical (as opposed to infrared) observations of phases were reported ...