Astronomy:GJ 4256 b
From HandWiki
| Discovery | |
|---|---|
| Discovery date | 2024 |
| Transit | |
| Orbital characteristics | |
| 0.0054 | |
| Eccentricity | 0.0 |
| Orbital period | 0.23818244 d |
| Inclination | 74.4 |
| Star | GJ 4256 |
| Physical characteristics | |
| Mass | 1.44 M🜨 |
| Physics | 1300 K |
GJ 4256 b (also known as TOI-6255 b) is an ultra-short period Earth-size terrestrial exoplanet located 20.3 parsecs from Earth orbiting the red dwarf star GJ 4256.[1][2] lt orbits the star at a distance of 0.0054 AU and has an orbital period of just 0.23 days.[3]
The planet orbits so close to the host star that it has nearly passed the roche limit. This causes the planet to be pulled into an egg-like shape. It is predicted that in around 400 million years, the planet will be ripped apart and engulfed by the star.[1]
References
- ↑ 1.0 1.1 Dai, Fei et al. (2024). "An Earth-sized Planet on the Verge of Tidal Disruption". The Astronomical Journal 168 (3): 101. doi:10.3847/1538-3881/ad5a7d. Bibcode: 2024AJ....168..101D.
- ↑ Cowing, Keith (2024-08-01). "An Earth-sized Planet On The Verge Of Tidal Disruption" (in en-US). https://astrobiology.com/2024/08/an-earth-sized-planet-on-the-verge-of-tidal-disruption.html.
- ↑ Martin, Pierre-Yves (2025). "Planet TOI-6255 b" (in en). https://exoplanet.eu/catalog/toi_6255_b--10287/.
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