CoRoT-8b

CoRoT-8b compared to Jupiter and Neptune.
Discovery[1]
Discovered by	Borde et al.
Discovery site	CoRoT space telescope
Discovery date	12 April 2010
Detection method	Transit
Orbital characteristics
Semi-major axis	0.0636 ± 0.0014 AU (9,510,000 ± 210,000 km)[2]
Eccentricity	<0.19[3]
Orbital period (sidereal)	6.212445±0.000007 d[2]
Inclination	88.18°±0.08°[2]
Time of periastron	2,454,239.03317±0.00049 JD[2]
Semi-amplitude	27.6+5.8 −4.7 m/s[3]
Star	CoRoT-8
Physical characteristics
Mean radius	0.619+0.016 −0.017 RJ[2]
Mass	0.218±0.034 MJ[2]
Mean density	1.1±0.2 g/cm3[2]
Temperature	870 ± 14 K (1,106.3 ± 25.2 °F; 596.9 ± 14.0 °C)[2]

CoRoT-8b is a transiting exoplanet orbiting the K-type main sequence star CoRoT-8 1,050 light years away in the equatorial constellation Aquila. The planet was discovered in April 2010 by the CoRoT telescope.

This planet was discovered using the transit method, which detects planet via eclipses. The discovery paper's abstract states that CoRoT-8b is extremely dense compared to Saturn.

CoRoT-8b has 21.8% Jupiter's mass, and due to its close orbit, a radius 61.9% that of Jupiter. This classifies the planet as a hot Saturn. Despite the bloated radius, the planet is extremely dense, with it being 1.1 times greater than water's; CoRoT-8b has a temperature of 870 K from its 6-day orbit.