Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
Proxima Cen d
Host star Proxima Cen • 5.12 d orbit
Records
2
archive rows
Discovery
2025
Radial Velocity
Radius
—
default parameter set
Mass
0.26 M⊕
default parameter set
Proxima Cen
282 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: Suárez Mascareño et al. 2025
Host Star
Proxima Cen
Stable across source rows
Discovery Year
2025
Stable across source rows
Orbital Period
5.12 day
5.12 to 5.12
Semi-Major Axis
0.03 au
0.03 to 0.03
Mass
0.26 Mearth
single adopted value
Equilibrium Temperature
282 K
single adopted value
Provenance
Underlying measurements and references
Evidence Summary
Rows
2
Refs
2
Methods
1
Discoverystable
Facilitystable
Periodstable
Massstable
Eq. Tempstable
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2025 | Radial Velocity | La Silla Observatory | 3.6 m ESO Telescope | 5.12 day | — | 0.26 Mearth | 282 K | Suárez Mascareño et al. 2025 |
| 2025 | Radial Velocity | La Silla Observatory | 3.6 m ESO Telescope | 5.12 day | — | 0.26 Mearth | — | Faria et al. 2022 |