Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 20868 b
Host star HD 20868 • 380.9 d orbit
Records
2
archive rows
Discovery
2008
Radial Velocity
Radius
—
default parameter set
Mass
397.3 M⊕
default parameter set
HD 20868
temperature unconstrained
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: Stassun et al. 2017
Host Star
HD 20868
Stable across source rows
Discovery Year
2008
Stable across source rows
Orbital Period
380.9 day
380.9 to 380.9
Semi-Major Axis
0.95 au
0.95 to 0.95
Mass
397.3 Mearth
397.3 to 632.5
Provenance
Underlying measurements and references
Evidence Summary
Rows
2
Refs
2
Methods
1
Discoverystable
Facilitystable
Periodstable
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2008 | Radial Velocity | La Silla Observatory | 3.6 m ESO Telescope | 380.9 day | — | 632.5 Mearth | — | Moutou et al. 2009 |
| 2008 | Radial Velocity | La Silla Observatory | 3.6 m ESO Telescope | 380.9 day | — | 397.3 Mearth | — | Stassun et al. 2017 |