KELT-18b

KELT-18b
Exoplanet List of exoplanets
Parent star
Star KELT-18
Constellation Ursa Major
Right ascension (α) +14h 26m 06.0s[1]
Declination (δ) +59° 26′ 09.0″[1]
Distance1014.3 ± 45.6[1] ly
(311 ± 14[1] pc)
Spectral type F4V[1]
Mass (m) 1.524 ± 0.069[1] M☉
Radius (r) 1.098+0.042
−0.035[1] R☉
Temperature (T) 6,670 ± 120[1] K
Metallicity [Fe/H] 0.09 ± 0.13[1]
Physical characteristics
Mass(m)1.18 ± 0.18[1] MJ
Radius(r)1.57+0.042
−0.035[1] RJ
Density(ρ)0.377 ± 0.040[2] g cm−3
Temperature (T) 2,120 K[1]
Orbital elements
Semi-major axis(a) 0.0455 ± 0.00069[1] AU
Eccentricity (e) 0[1]
Orbital period(P) 2.8717518 ± 2.8e-06[1] d
Inclination (i) 88.86+0.79
−1.2[1]°
Discovery information
Discovery date February 6, 2017
Discoverer(s)
Discovery method Transit
Discovery status Published
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

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]


References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 "Planet KELT-18 b". exoplanet.eu. Retrieved 2017-06-22.
  2. 1 2 KELT-18b: Puffy Planet, Hot Host, Probably Perturbed Kim K. McLeod 6 Feb 2017 doi:10.3847/1538-3881/aa6d5d Pdf


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