Kepler-663 b
A confirmed exoplanet orbiting Kepler-663.
Compared with Earth
- Size
- About 2.6 times Earth's width.
- Year
- A year here lasts about 5 Earth days.
Planet
- Radius
- 2.6 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 4.997 days
- Average distance from its star
- Unknown
Star
- Host star
- Kepler-663
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,264 K
- Radius
- 0.82 × Sun
- Mass
- 0.86 × Sun
- Age
- 4.57 billion years
System
- Distance from Earth
- 3,467 light-years (1,063 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.