Discovery | |
---|---|
Discovered by | Marshall Johnson et al.[1] |
Discovery site | KELT |
Discovery date | 2018 |
Transit method | |
Orbital characteristics | |
0.05224 AU (7,815,000 km) | |
3.6127647[1] d | |
Inclination | 86.46[1] |
Star | KELT-21 A (HD 332124) |
Physical characteristics | |
1.586[1] RJ | |
Mass | <3.91[1] MJ |
Mean density | <1.24 g cm−3 |
Temperature | 2,051 K (1,778 °C; 3,232 °F)[1] |
KELT-21b is an extrasolar planet discovered in 2017. It is a hot Jupiter with radius of about 1.586 MJ.[1]