GJ 9773 b
Orbiting GJ 9773
GJ 9773 b is an exoplanet orbiting the star GJ 9773, discovered in 2025 using the Radial Velocity method.
Minimum Mass (M sin i)
172.58
Earth masses
Orbital Period
2965.0
days
Distance
15.9
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
172.58
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Morales et al. 2025
Orbital Period
2965.000+41.000−37.000days
Semi-Major Axis
2.9210+0.0450−0.0450au
M sin(i) (Earth masses)
172.58+5.09−5.09
M sin(i) (Jupiter masses)
0.5430+0.0160−0.0160
Eccentricity
0.2180+0.0200−0.0200
Argument of Periastron
99.0+5.2−5.2deg
Radial Velocity Semi-Amplitude
15.11+0.32−0.31m/s
Distance from Earth
15.9 pc (~52 ly)
Spectral Type
M3.0 V
Temperature
3528 K
Mass (Solar)
0.36 M☉
Radius (Solar)
0.36 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
333.1502°, 8.5503°
Discovery Method
Radial Velocity
Discovery Year
2025
Source ID: GJ 9773 b
GJ 9773 b orbits GJ 9773 and was reported in 2025 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 172.58 Earth masses (M sin i) and an orbital period of 2,965 days.
Catalog data places the system at about 15.9 parsecs from Earth, a host star classified as M3.0 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 9773