Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 212771 b
Host star HD 212771 • 380.7 d orbit
Records
3
archive rows
Discovery
2009
Radial Velocity
Radius
—
default parameter set
Mass
759.6 M⊕
default parameter set
HD 212771
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: Luhn et al. 2019
Host Star
HD 212771
Stable across source rows
Discovery Year
2009
Stable across source rows
Orbital Period
380.7 day
373.3 to 380.7
Semi-Major Axis
1.19 au
1.16 to 1.22
Mass
759.6 Mearth
731.0 to 1172.8
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Refs
3
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2009 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 380.7 day | — | 759.6 Mearth | — | Luhn et al. 2019 |
| 2009 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 373.3 day | — | 1172.8 Mearth | — | Stassun et al. 2017 |
| 2009 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 373.3 day | — | 731.0 Mearth | — | Johnson et al. 2010 |