Discovery | |
---|---|
Discovered by | MASCARA |
Discovery date | 2019 |
transit | |
Orbital characteristics | |
0.047 | |
Eccentricity | 0 |
2.8 d | |
Inclination | 88.81 |
Star | HD 85628 A |
Physical characteristics | |
Mean radius | 1.53 RJ |
Mass | 3.1 MJ |
HD 85628 Ab, also designed MASCARA-4b, is an exoplanet located approximately 559.47±3.05 light years from Earth. This planet was discovered in 2019 using the transit method.[1][2]
It is a hot Jupiter on a retrograde and slightly eccentric orbit.[3] The planet is unusually reflective for a hot Jupiter.[4] Hydrogen, sodium, magnesium, calcium and iron emission from planetary atmosphere was detected.[5]
Main article: HD 85628 |
The host star, HD 85628 A, is the primary star of a binary star system, HD 85628. The secondary star is HD 85628 B, an M-type star.