Discovery Method
Radial Velocity
Consistent across records
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ExoplanetDetail
HD 176986 c
Host star HD 176986 • 16.81 d orbit
Records
3
archive rows
Discovery
2017
Radial Velocity
Radius
—
default parameter set
Mass
9.75 M⊕
default parameter set
HD 176986
558 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: Nari et al. 2026
Host Star
HD 176986
Stable across source rows
Discovery Year
2017
Stable across source rows
Orbital Period
16.81 day
16.81 to 16.82
Semi-Major Axis
0.12 au
0.12 to 0.12
Mass
9.75 Mearth
9.18 to 2098.0
Equilibrium Temperature
558 K
single adopted value
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Refs
3
Methods
1
Discoverystable
Facilitystable
Perioddisputed
Massdisputed
Eq. Tempstable
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2017 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 16.82 day | — | 2098.0 Mearth | — | Kiefer et al. 2021 |
| 2017 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 16.82 day | — | 9.18 Mearth | — | Suárez Mascareño et al. 2018 |
| 2017 | Radial Velocity | Multiple Observatories | Multiple Telescopes | 16.81 day | — | 9.75 Mearth | 558 K | Nari et al. 2026 |