Wolf 1061 b
Planet· orbits Wolf 1061
Wolf 1061 b - a hot rocky super-Earth (minimum mass ~1.9 Earth) whipping around the star every 4.9 days, too close to be temperate. Found from the star's wobble, so its mass is a minimum and its surface has never been seen.
Open in 3D viewSee Wolf 1061 b in the live, interactive 3D map
Key facts
Minimum mass
1.14 × 10²⁵ kg
1.91 M⊕
Year
4.89 Earth days
Distance from Wolf 1061
5,609,920 km
Science
Physical
- Minimum mass (m·sin i)
- 1.14 × 10²⁵ kg · 1.91 M⊕
- Radial-velocity detection measures m·sin i; the true mass depends on the unknown orbital inclination.
- Radius
- Not measured
- No transit — radius is a model estimate for a ~1.9-Earth-mass world; true size unknown.
Orbital
- Semi-major axis
- 5,609,920 km
- From the NASA Exoplanet Archive (radial-velocity orbit)
- Eccentricity
- 0.15
- From the NASA Exoplanet Archive (radial-velocity orbit)
- Inclination
- 0.00 °
- From the NASA Exoplanet Archive (radial-velocity orbit)
- Orbital period
- 4.9 days
- From the NASA Exoplanet Archive (radial-velocity orbit)
- Perihelion
- 4,768,432 km
- Computed from the orbital elements
- Aphelion
- 6,451,408 km
- Computed from the orbital elements
- Mean orbital velocity
- 83.5 km/s
- Computed from the orbital elements
Composition
- Bulk composition
- A rocky super-Earth of minimum mass ~1.9 Earth, too hot to be temperate; found only from the star's wobble, 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 Visual mode; Realism shows a plain spectral colour.
Radiation & temperature
- Insolation
- 7.25 S⊕ · 7.25× the sunlight Earth receives
- Computed from Wolf 1061's luminosity and the orbital distance (inverse-square; Earth's sunlight = 1).
- Equilibrium temperature
- 461 K (188 °C)
- Computed model value for its 4.9-day orbit — not measured.
Discovery & history
- Method
- Radial-velocity detection (stellar wobble)
- Name
- Designated 'b' 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').
One of three planets announced in 2015 from HARPS radial-velocity data - the innermost of the family.
Images
No official imagery available — this object has never been visited and no officially-licensed depiction exists.