Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
4 UMa b
Host star 4 UMa • 270.3 d orbit
Records
2
archive rows
Discovery
2006
Radial Velocity
Radius
—
default parameter set
Mass
2511.5 M⊕
default parameter set
4 UMa
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: Teng et al. 2023
Host Star
4 UMa
Stable across source rows
Discovery Year
2006
Stable across source rows
Orbital Period
270.3 day
269.3 to 270.3
Semi-Major Axis
0.88 au
0.87 to 0.88
Mass
2511.5 Mearth
2256.5 to 2511.5
Provenance
Underlying measurements and references
Evidence Summary
Rows
2
Refs
2
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Massdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2006 | Radial Velocity | Thueringer Landessternwarte Tautenburg | 2.0 m Alfred Jensch Telescope | 270.3 day | — | 2511.5 Mearth | — | Teng et al. 2023 |
| 2006 | Radial Velocity | Thueringer Landessternwarte Tautenburg | 2.0 m Alfred Jensch Telescope | 269.3 day | — | 2256.5 Mearth | — | Dollinger et al. 2007 |