CoRoT-1b is a transiting extrasolar planet approximately 2,630 light-years
away in the constellation of Monoceros. The planet was discovered orbit-
ing the yellow dwarf star CoRoT-1 in May 2007. The planet was the first
discovery by the French-led CoRoT Mission.
The planet is a large hot Jupiter, about 1.5 times the radius of Jupiter and
about the same mass, based on ground observations of the star. Its large
size is due to its low density combined with the intense heating of its par-
ent star causing the outer layers of the atmosphere to bloat.
CoRoT-1b takes 1.5 days to complete one orbit of its G-type star, lying at
an average distance of 0.02752 AU.
