Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HR 810 b
Host star HR 810 • 302.8 d orbit
Records
5
archive rows
Discovery
1999
Radial Velocity
Radius
—
default parameter set
Mass
721.5 M⊕
default parameter set
HR 810
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
HR 810
Stable across source rows
Discovery Year
1999
Stable across source rows
Orbital Period
302.8 day
302.8 to 332
Semi-Major Axis
0.92 au
0.91 to 0.98
Mass
721.5 Mearth
670 to 1970.5
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 | La Silla Observatory | 1.4 m CAT Telescope | 312 day | — | 677.0 Mearth | — | Butler et al. 2001 |
| 1999 | Radial Velocity | La Silla Observatory | 1.4 m CAT Telescope | 320.1 day | — | 718.3 Mearth | — | Kurster et al. 2000 |
| 1999 | Radial Velocity | La Silla Observatory | 1.4 m CAT Telescope | 332 day | — | 1970.5 Mearth | — | Gaia Collaboration et al. 2023 |
| 1999 | Radial Velocity | La Silla Observatory | 1.4 m CAT Telescope | 302.8 day | — | 721.5 Mearth | — | Stassun et al. 2017 |
| 1999 | Radial Velocity | La Silla Observatory | 1.4 m CAT Telescope | 308.0 day | — | 670 Mearth | — | Harada et al. 2025 |