Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
81 Cet b
Host star 81 Cet • 1005.6 d orbit
Records
3
archive rows
Discovery
2008
Radial Velocity
Radius
—
default parameter set
Mass
1051.1 M⊕
default parameter set
81 Cet
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: Teng et al. 2023
Host Star
81 Cet
Stable across source rows
Discovery Year
2008
Stable across source rows
Orbital Period
1005.6 day
952.7 to 1005.6
Semi-Major Axis
2.10 au
2.10 to 2.50
Mass
1051.1 Mearth
1051.1 to 1684.4
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 |
|---|---|---|---|---|---|---|---|---|
| 2008 | Radial Velocity | Okayama Astrophysical Observatory | 1.88 m Telescope | 1005.6 day | — | 1051.1 Mearth | — | Teng et al. 2023 |
| 2008 | Radial Velocity | Okayama Astrophysical Observatory | 1.88 m Telescope | — | — | 1274.4 Mearth | — | Kunitomo et al. 2011 |
| 2008 | Radial Velocity | Okayama Astrophysical Observatory | 1.88 m Telescope | 952.7 day | — | 1684.4 Mearth | — | Sato et al. 2008 |