Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 28678 b
Host star HD 28678 • 380.2 d orbit
Records
3
archive rows
Discovery
2011
Radial Velocity
Radius
—
default parameter set
Mass
490.1 M⊕
default parameter set
HD 28678
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 28678
Stable across source rows
Discovery Year
2011
Stable across source rows
Orbital Period
380.2 day
380.2 to 387.1
Semi-Major Axis
1.18 au
1.18 to 1.32
Mass
490.1 Mearth
490.1 to 810.5
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 |
|---|---|---|---|---|---|---|---|---|
| 2011 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 387.1 day | — | 810.5 Mearth | — | Stassun et al. 2017 |
| 2011 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 380.2 day | — | 490.1 Mearth | — | Luhn et al. 2019 |
| 2011 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 387.1 day | — | 540.3 Mearth | — | Johnson et al. 2011 |