| CoRoT-18b | |
| Discoverer: | CoRoT space telescope |
| Discovery Method: | Transit |
| Apsis: | astron |
| Semimajor: | 0.0295AU[1] |
| Eccentricity: | 0-0.08 |
| Period: | 1.9000693 d |
| Inclination: | 86.5 |
| Star: | CoRoT-18 |
| Mean Radius: | 1.31 |
| Mass: | 3.47 |
| Single Temperature: | 1396 K[2] |
CoRoT-18b is a transiting hot Jupiter exoplanet found by the CoRoT space telescope in 2011.[3] It orbits CoRoT-18 in the constellation of Monoceros. It is a G9V star with an effective temperature of 5440K, a mass of 0.95, a radius of 1.00, 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°.