Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 220689 b
Host star HD 220689 • 2266.4 d orbit
Records
3
archive rows
Discovery
2012
Radial Velocity
Radius
—
default parameter set
Mass
355.3 M⊕
default parameter set
HD 220689
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: Barbato et al. 2018
Host Star
HD 220689
Stable across source rows
Discovery Year
2012
Stable across source rows
Orbital Period
2266.4 day
2209 to 2280
Semi-Major Axis
3.40 au
3.36 to 3.43
Mass
355.3 Mearth
336.9 to 381.4
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 |
|---|---|---|---|---|---|---|---|---|
| 2012 | Radial Velocity | La Silla Observatory | 1.2 m Leonhard Euler Telescope | 2209 day | — | 336.9 Mearth | — | Marmier et al. 2013 |
| 2012 | Radial Velocity | La Silla Observatory | 1.2 m Leonhard Euler Telescope | 2280 day | — | 381.4 Mearth | — | Xiao et al. 2023 |
| 2012 | Radial Velocity | La Silla Observatory | 1.2 m Leonhard Euler Telescope | 2266.4 day | — | 355.3 Mearth | — | Barbato et al. 2018 |