Orbital characteristics | |
---|---|
0.03462+0.00110 −0.00093 AU | |
1.4811235±0.0000011[1] d | |
Inclination | 86.79±0.25[1] |
Star | HD 195689 |
Physical characteristics | |
1.891+0.061 −0.053[1] RJ | |
Mass | 2.17±0.56[2] MJ |
Mean density | 0.53000 ± 0.00015 g/cm3[citation needed] |
Albedo | <0.14[3] |
Temperature | 4050±180[1] K |
KELT-9b is an exoplanet and ultra-hot Jupiter that orbits the late B-type/early A-type star KELT-9,[4] located about 670 light-years from Earth.[4] Detected using the Kilodegree Extremely Little Telescope, the discovery of KELT-9b was announced in 2016.[5][1] As of June 2017, it is the hottest known exoplanet.[6]
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