TOI-4603 b
| Discovery | |
|---|---|
| Discovered by | Khandelwal et al. |
| Discovery site | India |
| Discovery date | 2023 |
| Transit | |
| Orbital characteristics | |
| 0.0888±0.001 AU | |
| Eccentricity | 0.325±0.02 |
| 7.246 d | |
| Inclination | 80.21° |
| Star | HD 245134 (TOI-4603) |
| Physical characteristics | |
| 1.042+0.035 −0.038 RJ | |
| Mass | 12.89+0.57 −0.58 MJ |
Mean density | 14.1+1.6 −1.7 g/cm3 |
| Temperature | 1,677±24 K (1404 °C) |
TOI-4603 b is a gas giant exoplanet orbiting HD 245134, a F-type subgiant star located 731 light-years away, in the constellation of Taurus. It orbits its host star at a distance of 0.0888 astronomical units (13,280,000 km), completing one orbit every 7 days around it. With a density of 14.1 g/cm3 (about 2.5 times that of Earth), it is one of the densest exoplanets known. The planet is just 4% larger than Jupiter, but is 12.9 times more massive, being located in the mass limit between planets and brown dwarfs.