Gliese 682 c
Planet· orbits the Sun
Gliese 682 c - an outer mini-Neptune (minimum mass ~8.7 Earth) on a 57-day orbit. RV-only: minimum mass, model-estimate size, never imaged.
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Key facts
Minimum mass
5.20 × 10²⁵ kg
8.7 M⊕
Year
57.32 Earth days
Distance from Gliese 682
0.176 AU
Science
Physical
- Minimum mass (m·sin i)
- 5.20 × 10²⁵ kg · 8.7 M⊕
- Radius
- Not measured
Orbital
- Semi-major axis
- 0.176 AU
- Eccentricity
- 0.1
- Inclination
- 0.00 °
- Orbital period
- 57.3 days
- Perihelion
- 0.158 AU
- Aphelion
- 0.194 AU
- Mean orbital velocity
- 33.4 km/s
Composition
- Bulk composition
- An outer mini-Neptune of minimum mass ~8.7 Earth; never imaged.
- Cloud appearance
- Appearance based on ESO/M. Kornmesser's artist's concept. No spacecraft has imaged this world, so its real appearance is unknown — The banded clouds shown are a representation of its class, shown only in Vision mode; Realism shows a plain spectral colour.
Radiation & temperature
- Insolation
- 0.0646 S⊕ · 6% of the sunlight Earth receives
- Equilibrium temperature
- 190 K (-83 °C)
Discovery & history
- Method
- Radial-velocity detection (stellar wobble)
- Name
- Designated 'c' under the IAU convention that letters a star's planets 'b', 'c', 'd'... in the order they are discovered (the star itself is the unwritten 'a').
The outer of the two planets reported in 2014 around this nearby red dwarf.
Images
No official imagery available — this object has never been visited and no officially-licensed depiction exists.