GJ 393 b
Orbiting GJ 393
GJ 393 b is an exoplanet orbiting the star GJ 393, discovered in 2021 using the Radial Velocity method.
Minimum Mass (M sin i)
1.71
Earth masses
Orbital Period
7.0
days
Distance
7.0
parsecs
Equilibrium Temp
485
K
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
1.71
Radial-velocity minimum
Equilibrium Temperature
485 K
Parameter source: Amado et al. 2021
Orbital Period
7.027+0.001−0.001days
Semi-Major Axis
0.0540+0.0007−0.0007au
M sin(i) (Earth masses)
1.71+0.24−0.24
M sin(i) (Jupiter masses)
0.0054+0.0008−0.0008
Epoch of Periastron
2458002.72+0.21−0.21days(BJD)
Radial Velocity Semi-Amplitude
1.01+0.14−0.14m/s
Distance from Earth
7.0 pc (~23 ly)
Spectral Type
M2.0 V
Temperature
3579 K
Mass (Solar)
0.43 M☉
Radius (Solar)
0.43 R☉
Luminosity
-1.57 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
157.2289°, 0.8378°
Discovery Method
Radial Velocity
Discovery Year
2021
Source ID: GJ 393 b
GJ 393 b orbits GJ 393 and was reported in 2021 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 1.71 Earth masses (M sin i), an orbital period of 7.03 days, and an equilibrium temperature near 485 K.
Catalog data places the system at about 7 parsecs from Earth, a host star classified as M2.0 V, and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open GJ 393