Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 40979 b
Host star HD 40979 • 264.1 d orbit
Records
4
archive rows
Discovery
2002
Radial Velocity
Radius
—
default parameter set
Mass
1484.3 M⊕
default parameter set
HD 40979
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 40979
Stable across source rows
Discovery Year
2002
Stable across source rows
Orbital Period
264.1 day
263.8 to 265.4
Semi-Major Axis
0.85 au
0.85 to 0.87
Mass
1484.3 Mearth
1207.7 to 1484.3
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Refs
4
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2002 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 263.8 day | — | 1217.2 Mearth | — | Butler et al. 2006 |
| 2002 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 264.1 day | — | 1484.3 Mearth | — | Stassun et al. 2017 |
| 2002 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 264.1 day | — | 1274.4 Mearth | — | Wittenmyer et al. 2009 |
| 2002 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 265.4 day | — | 1207.7 Mearth | — | Rosenthal et al. 2021 |