Gliese 317 b
| Discovery | |
|---|---|
| Discovered by | Johnson et al. |
| Discovery site | W. M. Keck, U.S. |
| Discovery date | 6 July 2007 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 1.138±0.013[1] AU | |
| Eccentricity | 0.0826+0.0070 −0.0071[1] |
| 695.69+0.26 −0.25[1] d | |
| Inclination | 45+30 −10[2] |
| 2,458,089.4+1.7 −1.6[1] | |
| 11.3+4.8 −4.6[1] | |
| Semi-amplitude | 71.39+0.56 −0.55[1] |
| Star | Gliese 317 |
| Physical characteristics | |
| Mass | 2.5+0.7 −0.4[2] |
Gliese 317 b is an extrasolar planet[3] approximately 50 light-years away in the constellation of Pyxis. The planet was reported in July 2007 to be orbiting the red dwarf star Gliese 317. It is a Jovian planet that orbits at about 95% of the distance between Earth and the Sun. The orbital period is about 1.9 years, corresponding to a slow orbital velocity of 14.82 km/s.
See also
References
- 1 2 3 4 5 6 Morales, J. C.; Ribas, I.; Reffert, S.; Perger, M.; Dreizler, S.; Anglada-Escudé, G.; Béjar, V. J. S.; Herrero, E.; Kemmer, J. (2025-07-21). "The CARMENES search for exoplanets around M dwarfs. Revisiting the GJ 317, GJ 463, and GJ 3512 systems and two newly discovered planets orbiting GJ 9773 and GJ 508.2". Astronomy and Astrophysics. arXiv:2507.15516. Bibcode:2025A&A...700A.242M. doi:10.1051/0004-6361/202554992. S2CID 280272906.
- 1 2 Anglada-Escude, Guillem; Boss, Alan P.; Weinberger, Alycia J.; Thompson, Ian B.; Butler, R. Paul; Vogt, Steven S.; Rivera, Eugenio J. (2012), "Astrometry and radial velocities of the planet host M dwarf Gliese 317: new trigonometric distance, metallicity and upper limit to the mass of Gliese 317 b", The Astrophysical Journal, 764 (1): 37A, arXiv:1111.2623, Bibcode:2012ApJ...746...37A, doi:10.1088/0004-637X/746/1/37, S2CID 118526264
- ↑ Johnson, John Asher; Butler, R. Paul; Marcy, Geoffrey W.; Fischer, Debra A.; Vogt, Steven S.; Wright, Jason T.; Peek, Kathryn M. G. (2007). "A New Planet Around an M Dwarf: Revealing a Correlation Between Exoplanets and Stellar Mass". The Astrophysical Journal. 670 (1): 833–840. arXiv:0707.2409. Bibcode:2007ApJ...670..833J. doi:10.1086/521720. S2CID 9135084.
