Discovery Method
Radial Velocity
Consistent across records
←Back to Exoplanets
ExoplanetDetail
GJ 251 b
Host star GJ 251 • 14.24 d orbit
Records
2
archive rows
Discovery
2020
Radial Velocity
Radius
—
default parameter set
Mass
3.85 M⊕
default parameter set
GJ 251
336 K equilibrium
Canonical Summary
Adopted planet values from the default parameter set
Values come from the archive's default parameter set. Missing values stay missing. Ranges and counts describe all source rows.
Selected source: Beard et al. 2025
Host Star
GJ 251
Stable across source rows
Discovery Year
2020
Stable across source rows
Orbital Period
14.24 day
14.24 to 14.24
Semi-Major Axis
0.08 au
0.08 to 0.08
Mass
3.85 Mearth
3.85 to 4
Equilibrium Temperature
336 K
336 to 351
Provenance
Underlying measurements and references
Evidence Summary
Rows
2
Refs
2
Methods
1
Discoverystable
Facilitystable
Periodstable
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2020 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 14.24 day | — | 3.85 Mearth | 336 K | Beard et al. 2025 |
| 2020 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 14.24 day | — | 4 Mearth | 351 K | Stock et al. 2020 |