Gliese 317 b

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Gliese 317 b
Discovery
Discovered byJohnson et al.
Discovery siteUnited States W. M. Keck
Discovery date6 July 2007
Doppler spectroscopy
Orbital characteristics
0.95 AU (142,000,000 km)
Eccentricity0.193 ± 0.06
692.9 ± 4 d
1.9 ± 1.1 y
2451639 ± 30
344 ± 10
Semi-amplitude57.3
StarGliese 317

Gliese 317 b is an 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 orbits about 95% the distance between Earth to the Sun. Despite of this, it takes about 1.9 years, corresponding to slow orbital velocity of 14.82 km/s.

See also[edit]

References[edit]

  1. ^ Johnson; 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.

Coordinates: Sky map 08h 40m 59.21s, −23° 27′ 22.6″