HD 100655 b
A confirmed exoplanet orbiting HD 100655.
Compared with Earth
- Mass
- About 512 times Earth's mass.
- Year
- A year here lasts about 158 Earth days.
Planet
- Radius
- Unknown
- Mass
- 511.7 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 157.6 days
- Average distance from its star
- 0.68 AU
Star
- Host star
- HD 100655
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,891 K
- Radius
- 10.06 × Sun
- Mass
- 2.28 × Sun
- Age
- Unknown
System
- Distance from Earth
- 447.4 light-years (137.2 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2011
- Method
- Radial Velocity
- Facility
- Bohyunsan Optical Astronomical Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.