Kepler-661 b
A confirmed exoplanet orbiting Kepler-661.
Compared with Earth
- Size
- About 3.1 times Earth's width.
- Year
- A year here lasts about 6 Earth days.
Planet
- Radius
- 3.07 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 6.029 days
- Average distance from its star
- Unknown
Star
- Host star
- Kepler-661
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,483 K
- Radius
- 0.67 × Sun
- Mass
- 0.7 × Sun
- Age
- 4.27 billion years
System
- Distance from Earth
- 1,744 light-years (534.8 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2016
- Method
- Transit
- Facility
- Kepler
Data from the NASA Exoplanet Archive, synced October 14, 2026.