Luyten's Star c
Planet· orbits the Sun
Luyten's Star c - the inner planet (minimum mass ~1.2 Earth), a hot world on a 4.7-day orbit. Never imaged.
Open in 3D viewSee Luyten's Star c in the live, interactive 3D map
Key facts
Minimum mass
7.05 × 10²⁴ kg
1.18 M⊕
Year
4.72 Earth days
Distance from Luyten's Star
5,460,322 km
Science
Physical
- Minimum mass (m·sin i)
- 7.05 × 10²⁴ kg · 1.18 M⊕
- Radius
- Not measured
Orbital
- Semi-major axis
- 5,460,322 km
- Eccentricity
- 0.17
- Inclination
- 0.00 °
- Orbital period
- 4.7 days
- Perihelion
- 4,532,067 km
- Aphelion
- 6,388,577 km
- Mean orbital velocity
- 84.1 km/s
Composition
- Bulk composition
- Presumed rocky (minimum mass ~1.2 Earth); never imaged.
- Surface appearance
- Appearance based on ESO/M. Kornmesser's artist's concept. No spacecraft has imaged this world, so its real appearance is unknown — The surface shown is an artistic representation, shown only in Vision mode; Realism shows a plain spectral colour.
Radiation & temperature
- Insolation
- 6.61 S⊕ · 6.61× the sunlight Earth receives
- Equilibrium temperature
- 462 K (189 °C)
Discovery & history
- Method
- Radial-velocity detection (stellar wobble)
- Name
- Designated 'c' as the first planet found around its star, following the IAU convention of lettering planets in discovery order from 'b'.
The inner of two planets found by HARPS in 2017.
Images
No official imagery available — this object has never been visited and no officially-licensed depiction exists.