Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 134987 b
Host star HD 134987 • 258.2 d orbit
Records
5
archive rows
Discovery
1999
Radial Velocity
Radius
—
default parameter set
Mass
511.7 M⊕
default parameter set
HD 134987
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 134987
Stable across source rows
Discovery Year
1999
Stable across source rows
Orbital Period
258.2 day
258.2 to 264.6
Semi-Major Axis
0.81 au
0.81 to 0.82
Mass
511.7 Mearth
505 to 518.1
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Refs
5
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 258.2 day | — | 505 Mearth | — | Jones et al. 2010 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 258.3 day | — | 514.9 Mearth | — | Butler et al. 2006 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 264.6 day | — | 518.1 Mearth | — | Butler et al. 2001 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 258.2 day | — | 511.7 Mearth | — | Stassun et al. 2017 |
| 1999 | Radial Velocity | W. M. Keck Observatory | 10 m Keck I Telescope | 258.3 day | — | 516.2 Mearth | — | Rosenthal et al. 2021 |