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] |
Distance | 1014.3 ± 45.6[1] ly (311 ± 14[1] pc) | |
Spectral type | F4V[1] | |
Mass | (m) | 1.524 ± 0.069[1] M☉ |
Radius | (r) | +0.042 −0.035 1.098[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) | +0.042 −0.035 1.57[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) | +0.79 −1.2 88.86[1]° |
Discovery information | ||
Discovery date | February 6, 2017 | |
Discoverer(s) | ||
Discovery method | Transit | |
Discovery status | Published | |
Database references | ||
Extrasolar Planets Encyclopaedia | data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
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
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