KELT-20b
Exoplanet orbiting KELT-20
From Wikipedia, the free encyclopedia
KELT-20b, also known as MASCARA-2b, is an exoplanet announced in 2017. It is an Ultra-hot Jupiter orbiting an A-type star. The carbon monoxide, steam[2][3] and neutral iron[4] detection in the atmosphere of KELT-20b was announced in 2022.
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An artist's impression of ultra-hot Jupiter planet KELT-20b orbiting its host star. | |
| Discovery | |
|---|---|
| Discovery site | KELT |
| Discovery date | 2017 |
| Transit method | |
| Orbital characteristics | |
| 0.0542 AU | |
| 3.6127647 d = 3.474 | |
| Inclination | 86.12 |
| Star | KELT-20 |
| Physical characteristics[1] | |
| 1.821 RJ | |
| Mass | 3.355 MJ |
Mean density | 0.737 g cm−3 |
Host star
The host star is an A-type main-sequence star in the constellation of Cygnus having 2.282 solar masses, 1.617 solar radius and an apparent magnitude of 7.58.