Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
GJ 887 b
Host star GJ 887 • 9.26 d orbit
Records
3
archive rows
Discovery
2020
Radial Velocity
Radius
—
default parameter set
Mass
3.90 M⊕
default parameter set
GJ 887
426 K equilibrium
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: Hartogh et al. 2026
Host Star
GJ 887
Stable across source rows
Discovery Year
2020
Stable across source rows
Orbital Period
9.26 day
9.26 to 9.26
Semi-Major Axis
0.07 au
0.07 to 0.08
Mass
3.90 Mearth
3.90 to 6.90
Equilibrium Temperature
426 K
426 to 468
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Refs
3
Methods
1
Discoverystable
Facilitystable
Periodstable
Massdisputed
Eq. Tempdisputed
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2020 | Radial Velocity | La Silla Observatory | 3.6 m ESO Telescope | 9.26 day | — | 4.20 Mearth | 468 K | Jeffers et al. 2020 |
| 2020 | Radial Velocity | La Silla Observatory | 3.6 m ESO Telescope | 9.26 day | — | 3.90 Mearth | 426 K | Hartogh et al. 2026 |
| 2020 | Radial Velocity | La Silla Observatory | 3.6 m ESO Telescope | 9.26 day | — | 6.90 Mearth | — | Harada et al. 2025 |