CoRoT-18b

CoRoT-18b is a transiting hot Jupiter exoplanet found by the CoRoT space telescope in 2011.^[3][4] It orbits CoRoT-18 in the constellation of Monoceros. It is a G9V star with an effective temperature of 5,440 K (5,170 °C; 9,330 °F), a mass of 0.95 M_☉, a radius of 1.00 R_☉, and a near-solar metallicity. Its age is unknown. A 2021 study utilizing the Rossiter–McLaughlin effect has determined the planetary orbit is probably aligned with the rotational axis of the star, with a misalignment equal to -10±20°.^[5]

CoRoT-18b

Discovery
Discovered by	CoRoT space telescope
Detection method	Transit
Orbital characteristics
Semi-major axis	0.0295 AU (4,410,000 km)[1]
Eccentricity	0-0.08
Orbital period (sidereal)	1.9000693 d
Inclination	86.5
Star	CoRoT-18
Physical characteristics
Mean radius	1.31 RJ
Mass	3.47MJ
Temperature	1396 K[2]