Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 217107 b
Host star HD 217107 • 7.13 d orbit
Records
8
archive rows
Discovery
1998
Radial Velocity
Radius
—
default parameter set
Mass
459.6 M⊕
default parameter set
HD 217107
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: Giovinazzi et al. 2025
Host Star
HD 217107
Stable across source rows
Discovery Year
1998
Stable across source rows
Orbital Period
7.13 day
7.13 to 7.13
Semi-Major Axis
0.07 au
0.07 to 0.08
Mass
459.6 Mearth
413.2 to 461.2
Provenance
Underlying measurements and references
Evidence Summary
Rows
8
Refs
8
Methods
1
Discoverystable
Facilitystable
Periodstable
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 449.2 Mearth | — | Feng et al. 2015 |
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 422.7 Mearth | — | Wittenmyer et al. 2007 |
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 441.8 Mearth | — | Wright et al. 2009 |
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 413.2 Mearth | — | Stassun et al. 2017 |
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 459.6 Mearth | — | Giovinazzi et al. 2025 |
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 435.4 Mearth | — | Vogt et al. 2005 |
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 461.2 Mearth | — | An et al. 2025 |
| 1998 | Radial Velocity | Lick Observatory | 3.0 m C. Donald Shane Telescope | 7.13 day | — | 440.2 Mearth | — | Rosenthal et al. 2021 |