 | |
| Discovery | |
|---|---|
| Discovered by | Guillermo Torres et al. |
| Discovery site | Kepler |
| Discovery date | January 7, 2015 |
| Detection method | Transit method |
| Orbital characteristics | |
| Semi-major axis | 0.495 AU (74,100,000 km) |
| Eccentricity | ≥0.11 |
| Orbital period (sidereal) | 177.6693 d |
| Inclination | 89.94 |
| Time of periastron | JD 2455630.2460 |
| Star | Kepler-443 |
| Physical characteristics | |
| Mean radius | 2.33 R🜨 |
Kepler-443b is an exoplanet about 2,540 light-years from Earth. It has an 89.9 percent chance of being in the star's habitable zone, yet only a 4.9 percent chance of being rocky.
Characteristics
Mass, radius and temperature
Kepler-443b has a mass of 6.04 Earth masses, a radius of 2.33 Earth radii and a temperature of 247 kelvin.
Host star
Kepler-443b orbits a K-type star called Kepler-443, 2541 light-years away.
Orbit
Kepler-443b takes 177.6693 days to orbit its star, with an inclination of 89.94°, a semimajor axis of 0.495 AU and an eccentricity of at least 0.11.
Habitability
Kepler-443b may be habitable, but the planet has only a 4.9 percent chance of being rocky. The planet is much more likely to be a water world or a Mini-Neptune.
References
- ^ Torres, Guillermo; Kipping, David M.; Fressin, Francois; Caldwell, Douglas A.; Twicken, Joseph D.; Ballard, Sarah; Batalha, Natalie M.; Bryson, Stephen T.; Ciardi, David R.; Henze, Christopher E.; Howell, Steve B.; Isaacson, Howard T.; Jenkins, Jon M.; Muirhead, Philip S.; Newton, Elisabeth R.; Petigura, Erik A.; Barclay, Thomas; Borucki, William J.; Crepp, Justin R.; Everett, Mark E.; Horch, Elliott P.; Howard, Andrew W.; Kolbl, Rea; Marcy, Geoffrey W.; McCauliff, Sean; Quintana, Elisa V. (2015). "Validation of 12 Smallkeplertransiting Planets in the Habitable Zone". The Astrophysical Journal. 800 (2): 99. arXiv:1501.01101. Bibcode:2015ApJ...800...99T. doi:10.1088/0004-637X/800/2/99. S2CID 8512655.
- ^ "HEC: Data of Potentially Habitable Worlds". Planetary Habitability Laboratory. 15 November 2017. Archived from the original on 1 June 2012. Retrieved 17 April 2018.
- "Eyes on Exoplanets-Kepler-443b".
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