TOI-628 b
| Discovery | |
|---|---|
| Discovered by | Transiting Exoplanet Survey Satellite |
| Discovery date | January 2021 |
| Transit | |
| Designations | |
| HD 288842 b | |
| Orbital characteristics | |
| 0.0486+0.0008 −0.0009 AU | |
| Eccentricity | 0.07±0.02 |
| 3.41 days | |
| Inclination | 88.41+1.00 −0.93 |
| Star | TOI-628 (HD 288842) |
| Physical characteristics | |
| 1.06+0.06 −0.03 RJ | |
| Mass | 6.3±0.3 MJ |
Mean density | 6.58+0.70 −0.75 g/cm3 |
| Temperature | 1586+52 −40 K |
TOI-628 b is an exoplanet whose mass is 6.33 times that of Jupiter. It has an orbital period of 3.4 days and was discovered by TESS in January 2021. The planet is classified as hot Jupiter, having a equilibrium temperature of 1,586 K (1,313 °C), and a radius 6% larger than that of Jupiter. It is located 583 light years away from Earth.
The host star of TOI-628 b is TOI-628, also known as HD 28842, a G-type star located in the constellation Monoceros. It is 1.35 times larger than the Sun, 1.31 times more massive, and has an effective temperature of 6,250 K (5,980 °C). The star has a visual apparent magnitude of 10.112, being not visible to the naked eye. It is moving away from the Sun, with a radial velocity of 20.07 km/s.