TOI-2285 b
| Discovery | |
|---|---|
| Discovery date | 2021 |
| TESS | |
| Orbital characteristics | |
| 13.64 days[1] | |
| Star | TOI-2285 |
| Physical characteristics[2] | |
| 1.77+0.12 −0.09 R🜨 | |
| Temperature | 358 ± 8 K (84.85 ± 8.00 °C) |
TOI-2285 b is a sub-Neptune exoplanet in orbit around the M-type star TOI-2285.[3][4]
The planet was identified through transit signals in data from the Transiting Exoplanet Survey Satellite (TESS).[1]
Initially, researchers reported an orbital period of 27.3 days, which put the planet near the outer edge of the habitable zone with an equilibrium temperature around 284 K (11 °C). Later analysis of additional TESS sectors revealed that the true period is 13.64 days. This correction increases the estimated equilibrium temperature to 358 K (85 °C).[2]
References
- ^ a b Akihiko, Fukui; Tadahiro, Kimura; Teruyuki, Hirano; Norio, Narita; Takanori, Kodama; Yasunori, Hori; Masahiro, Ikoma; Enric, Pallé; Felipe, Murgas; Hannu, Parviainen; Kiyoe, Kawauchi; Mayuko, Mori; Emma, Esparza-Borges; Allyson, Bieryla; Jonathan, Irwin (2022-02-01). "TOI-2285b: A 1.7 Earth-radius planet near the habitable zone around a nearby M dwarf". Publications of the Astronomical Society of Japan. 74 (1): L1–L8. doi:10.1093/pasj/psab106. ISSN 0004-6264.
- ^ a b Fukui, Akihiko (2025-04-04). "Hidden Transits: TOI-2285 b is a Warmer Sub-Neptune Likely with a Super-Earth Companion". Research Notes of the AAS. 9 (4): 73. arXiv:2505.22009. doi:10.3847/2515-5172/adc7fb. ISSN 2515-5172.
- ^ "TOI-2285 b". NASA Exoplanet Catalog. Retrieved March 11, 2026.
- ^ "TOI-2285 Overview". NASA Exoplanet Archive (Caltech/IPAC). Retrieved March 11, 2026.