GJ 317 b · Asteria Star

Scientific overview

GJ 317 b is a gas giant orbiting GJ 317, completing an orbit every 696 days, about 50 light-years from Earth. It was discovered in 2007 using the radial velocity method.

Host star

GJ 317

Spectral type

M3.5 V

Temperature

3,496 K

Mass

0.402 M☉

Planetary system — GJ 317 system

View the GJ 317 system (2 known planets).

Planet	Class	Radius (R⊕)	Period (d)	Distance (ly)
GJ 317 bRadial Velocity · 2007	Gas giant	13.3	696	50
GJ 317 cRadial Velocity · 2016	Gas giant	13.6	6500	50

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2007

Discovered at

W. M. Keck Observatory

Knowledge connections

OrbitsGJ 317
Member of systemGJ 317 system
Discovered by methodRadial Velocity Method
Discovered atW. M. Keck Observatory
Catalogued inNASA Exoplanet Archive

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