KELT-18b
KELT-18b is a hot Jupiter orbiting a hot type F4V star. It is one of the most inflated planets known around a hot star.[2]
| Discovery | |
|---|---|
| Discovery date | February 6, 2017 |
| Transit | |
| Orbital characteristics | |
| 0.0455 ± 0.00069 AU (6,807,000 ± 103,000 km)[1] | |
| Eccentricity | 0[1] |
| 2.8717518 ± 2.8e-06[1] d | |
| Inclination | 88.86+0.79 −1.2[1] |
| Star | KELT-18 |
| Physical characteristics | |
Mean radius | 1.57+0.042 −0.035[1] RJ |
| Mass | 1.18 ± 0.18[1] MJ |
Mean density | 0.377 ± 0.040 g/cm3 (0.0136 ± 0.0014 lb/cu in)[2] |
| Temperature | 2,120 K[1] |
No additional planets in the system was discovered as in 2020.[3]
References
- "Planet KELT-18 b". exoplanet.eu. Retrieved 2017-06-22.
- KELT-18b: Puffy Planet, Hot Host, Probably Perturbed Kim K. McLeod 6 Feb 2017 doi:10.3847/1538-3881/aa6d5d arXiv:1702.01657
- Search for planets in hot Jupiter systems with multi-sector TESS photometry. I. No companions in planetary systems KELT-18, KELT-23, KELT-24, Qatar-8, WASP-62, WASP-100, WASP-119, and WASP-126, 2020, arXiv:2010.11977
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