| Discovery | |
|---|---|
| Discovered by | Khandelwal et al.[1] |
| Discovery site |  India |
| Discovery date | 2023 |
| Transit | |
| Orbital characteristics | |
| 0.0888±0.001 AU[2] | |
| Eccentricity | 0.325±0.02[2] |
| 7.246[2] d | |
| Inclination | 80.21°[2] |
| Star | HD 245134 (TOI-4603) |
| Physical characteristics | |
| 1.042+0.035 −0.038 RJ[2] | |
| Mass | 12.89+0.57 −0.58 MJ[2] |
Mean density | 14.1+1.6 −1.7 g/cm3[2] |
| Temperature | 1,677±24 K (1404 °C)[2] |
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.[3][note 1] 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.[2] With a density of 14.1 g/cm3 (about 2.5 times that of Earth), it is one of the densest exoplanets known.[2] 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.[2]
- ^ Cite error: The named reference
:1was invoked but never defined (see the help page). - ^ a b c d e f g h i j k Khandelwal, Akanksha; Sharma, Rishikesh; Chakraborty, Abhijit; Chaturvedi, Priyanka; Ulmer-Moll, Solène; Ciardi, David R.; Boyle, Andrew W.; Baliwal, Sanjay; Bieryla, Allyson; Latham, David W.; Prasad, Neelam J. S. S. V.; Nayak, Ashirbad; Lendl, Monika; Mordasini, Christoph (2023-04-01). "Discovery of a massive giant planet with extreme density around the sub-giant star TOI-4603". Astronomy & Astrophysics. 672: L7. arXiv:2303.11841. doi:10.1051/0004-6361/202245608. ISSN 0004-6361.
- ^ "⬤ Exoplanet TOI 4603 b". Stellar Catalog. Retrieved 2023-12-03.
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