GJ 317 b
Orbiting GJ 317
GJ 317 b is an exoplanet orbiting the star GJ 317, discovered in 2007 using the Radial Velocity method.
Minimum Mass (M sin i)
536.49
Earth masses
Orbital Period
695.7
days
Distance
15.2
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
536.49
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Morales et al. 2025
Orbital Period
695.690+0.260−0.250days
Semi-Major Axis
1.1380+0.0130−0.0130au
M sin(i) (Earth masses)
536.49+13.03−13.03
M sin(i) (Jupiter masses)
1.6880+0.0410−0.0410
Eccentricity
0.0826+0.0070−0.0071
Argument of Periastron
11.3+4.8−4.6deg
Radial Velocity Semi-Amplitude
71.39+0.56−0.55m/s
Distance from Earth
15.2 pc (~50 ly)
Spectral Type
M3.5 V
Temperature
3496 K
Mass (Solar)
0.40 M☉
Radius (Solar)
0.40 R☉
Luminosity
Unknown
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
130.2445°, -23.4528°
Discovery Method
Radial Velocity
Discovery Year
2007
Source ID: GJ 317 b
GJ 317 b orbits GJ 317 and was reported in 2007 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 536.49 Earth masses (M sin i) and an orbital period of 695.69 days.
Catalog data places the system at about 15.2 parsecs from Earth, a host star classified as M3.5 V, and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open GJ 317More planets in this system