Kepler-186 e
Planet· orbits the Sun
Kepler-186 e — the outermost CONFIRMED planet, a super-Earth (1.27 Earth radii) on a 22-day orbit just inside the temperate zone. Its size is measured; its mass is size-estimated, so no density is quoted. Never imaged.
Open in 3D viewSee Kepler-186 e in the live, interactive 3D map
Key facts
Radius
8,091 km
1.27× wider than Earth
Year
22.41 Earth days
Distance from Kepler-186
0.11 AU
Science
Physical
- Radius
- 8,091 km · 1.27× wider than Earth
Orbital
- Semi-major axis
- 0.11 AU
- Eccentricity
- 0
- Inclination
- 0.00 °
- Orbital period
- 22.4 days
- Perihelion
- 0.11 AU
- Aphelion
- 0.11 AU
- Mean orbital velocity
- 53.4 km/s
Composition
- Bulk composition
- A super-Earth (1.27 Earth radii), the outermost securely confirmed planet; its size is measured, its mass only size-estimated, so no density is quoted. Beyond it lies the disputed candidate f. Never imaged.
- Surface appearance
- Appearance based on NASA/JPL-Caltech'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
- 3.42 S⊕ · 3.42× the sunlight Earth receives
- Equilibrium temperature
- 319 K (46 °C)
Discovery & history
- Method
- Transit detection
- Name
- Designated 'e' under the IAU convention that letters a star's planets 'b', 'c', 'd'... in the order they are found (the star is the unwritten 'a'); no IAU proper name has been assigned.
The outermost of the four securely confirmed Kepler-186 planets (2014); beyond it lies the disputed candidate f.
Images
No telescope has imaged this world — it is known only from the tiny dip it makes crossing its star. Only its host system has been pictured (see the system view); its true surface appearance is unknown.