Exoplanet

GJ 251 c

Orbiting GJ 251

Overview

GJ 251 c is an exoplanet orbiting the star GJ 251, discovered in 2025 using the Radial Velocity method.

Key Measurements

Orbital Period

53.6

days

0.1d10,000d

Distance

5.6

parsecs

Nearby10,000 pc

Equilibrium Temp

216

K

150 K3,500 K

Radius (Earth radii)

Unknown

Mass (Earth masses)

Unknown

Equilibrium Temperature

216 K

Orbital Period

53.65 days

Distance from Earth

5.6 pc (~18 ly)

Spectral Type

Unknown

Temperature

3342 K

Mass (Solar)

0.35 M☉

Radius (Solar)

0.36 R☉

Luminosity

-1.81 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

103.7002°, 33.2665°

Discovery Method

Radial Velocity

Discovery Year

2025

Data Sources

Source ID: GJ 251 c

System Context

GJ 251 c orbits GJ 251 and was reported in 2025 and was detected with the Radial Velocity method.

Published measurements list an orbital period of 53.65 days and an equilibrium temperature near 216 K.

Catalog data places the system at about 5.6 parsecs from Earth 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 251

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