Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 187123 b
Host star HD 187123 • 3.10 d orbit
Records
7
archive rows
Discovery
1998
Radial Velocity
Radius
—
default parameter set
Mass
166.2 M⊕
default parameter set
HD 187123
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: Wright et al. 2009
Host Star
HD 187123
Stable across source rows
Discovery Year
1998
Stable across source rows
Orbital Period
3.10 day
3.10 to 3.10
Semi-Major Axis
0.04 au
0.04 to 0.04
Mass
166.2 Mearth
152.6 to 176.4
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Refs
7
Methods
1
Discoverystable
Facilitystable
Periodstable
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 1998 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.10 day | — | 166.2 Mearth | — | Wright et al. 2009 |
| 1998 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.10 day | — | 159.2 Mearth | — | Rosenthal et al. 2021 |
| 1998 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.10 day | — | 176.4 Mearth | — | An et al. 2025 |
| 1998 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.10 day | — | 152.6 Mearth | — | Vogt et al. 2000 |
| 1998 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.10 day | — | 161.3 Mearth | — | Feng et al. 2015 |
| 1998 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.10 day | — | 165.3 Mearth | — | Butler et al. 1998 |
| 1998 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 3.10 day | — | 165.3 Mearth | — | Naef et al. 2004 |