GJ 2126 b
Orbiting GJ 2126
GJ 2126 b is an exoplanet orbiting the star GJ 2126, discovered in 2025 using the Radial Velocity method.
Minimum Mass (M sin i)
413.18
Earth masses
Orbital Period
272.7
days
Distance
38.1
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
413.18
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Schorr et al. 2025
Orbital Period
272.700+0.100−0.100days
Semi-Major Axis
0.7100+0.0300−0.0300au
M sin(i) (Earth masses)
413.18+63.57−31.78
M sin(i) (Jupiter masses)
1.3000+0.2000−0.1000
Eccentricity
0.8500+0.0100−0.0100
Epoch of Periastron
2453371.00+1.00−1.00days(BJD)
Argument of Periastron
10.0+1.0−1.0deg
Radial Velocity Semi-Amplitude
101.00+11.00−6.00m/s
Distance from Earth
38.1 pc (~124 ly)
Spectral Type
M0 V
Temperature
4159 K
Mass (Solar)
0.65 M☉
Radius (Solar)
0.73 R☉
Luminosity
-0.85 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
257.3607°, -35.3917°
Discovery Method
Radial Velocity
Discovery Year
2025
Source ID: GJ 2126 b
GJ 2126 b orbits GJ 2126 and was reported in 2025 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 413.18 Earth masses (M sin i) and an orbital period of 272.7 days.
Catalog data places the system at about 38.1 parsecs from Earth, a host star classified as M0 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 2126