| Gliese 317 b | |
| Discoverer: | Johnson et al. |
| Discovery Site: | W. M. Keck, U.S. |
| Discovered: | 6 July 2007 |
| Discovery Method: | Doppler spectroscopy |
| Apsis: | astron |
| Semimajor: | 0.95AU |
| Eccentricity: | 0.193 ± 0.06 |
| Period: | 692.9 ± 4 d 1.9 ± 1.1 y |
| Time Periastron: | 2451639 ± 30 |
| Arg Peri: | 344 ± 10 |
| Semi-Amplitude: | 57.3 |
| Star: | Gliese 317 |
Gliese 317 b is an extrasolar planet[1] 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. The planet 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.