GJ 357 c
Orbiting GJ 357
GJ 357 c is an exoplanet orbiting the star GJ 357, discovered in 2019 using the Radial Velocity method.
Minimum Mass (M sin i)
3.40
Earth masses
Orbital Period
9.1
days
Distance
9.4
parsecs
Equilibrium Temp
401
K
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
3.40
Radial-velocity minimum
Equilibrium Temperature
401 K
Parameter source: Luque et al. 2019
Orbital Period
9.125+0.001−0.001days
Semi-Major Axis
0.0610+0.0040−0.0040au
M sin(i) (Earth masses)
3.40+0.46−0.46
M sin(i) (Jupiter masses)
0.0107+0.0014−0.0014
Radial Velocity Semi-Amplitude
2.13+0.28−0.28m/s
Distance from Earth
9.4 pc (~31 ly)
Spectral Type
M2.5 V
Temperature
3505 K
Mass (Solar)
0.34 M☉
Radius (Solar)
0.34 R☉
Luminosity
-1.80 log L☉
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
144.0075°, -21.6651°
Discovery Method
Radial Velocity
Discovery Year
2019
Source ID: GJ 357 c
GJ 357 c orbits GJ 357 and was reported in 2019 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 3.4 Earth masses (M sin i), an orbital period of 9.12 days, and an equilibrium temperature near 401 K.
Catalog data places the system at about 9.4 parsecs from Earth, a host star classified as M2.5 V, and 3 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open GJ 357