| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | Gliese 317 | |
| Constellation | Pyxis | |
| Right ascension | (α) | 08h 40m 59.21s |
| Declination | (δ) | –23° 27′ 22.6″ |
| Apparent magnitude | (mV) | 12 |
| Distance | 49.9 ly (15.3 pc) |
|
| Spectral type | M3.5V | |
| Orbital elements | ||
| Orbital period | (P) | 2700 d (7.4 y) |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.83 MJ |
| Discovery information | ||
| Discovery date | 6 July 2007 (Announced) | |
| Discoverer(s) | Johnson et al. | |
| Detection method | Doppler spectroscopy | |
| Discovery site | W. M. Keck | |
| Discovery status | Unconfirmed | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
Gliese 317 c is a possible extrasolar planet[1] approximately 50 light-years away in the constellation of Pyxis. The planet was announced in July 2007 to be orbiting the red dwarf star Gliese 317. The planet is a Jovian planet that is, at least, 83% the mass of Jupiter. The semi-major axis is unknown, relatively typical for unconfirmed planets. The eccentricity of the orbit is 42% and have orbital period of 7.4 years.