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]

KELT-18b
Discovery
Discovery dateFebruary 6, 2017
Transit
Orbital characteristics
0.0455 ± 0.00069 AU (6,807,000 ± 103,000 km)[1]
Eccentricity0[1]
2.8717518 ± 2.8e-06[1] d
Inclination88.86+0.79
−1.2
[1]
StarKELT-18
Physical characteristics
Mean radius
1.57+0.042
−0.035
[1] RJ
Mass1.18 ± 0.18[1] MJ
Mean density
0.377 ± 0.040 g/cm3 (0.0136 ± 0.0014 lb/cu in)[2]
Temperature2,120 K[1]

    No additional planets in the system was discovered as in 2020.[3]

    References

    1. "Planet KELT-18 b". exoplanet.eu. Retrieved 2017-06-22.
    2. KELT-18b: Puffy Planet, Hot Host, Probably Perturbed Kim K. McLeod 6 Feb 2017 doi:10.3847/1538-3881/aa6d5d arXiv:1702.01657
    3. 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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