HD 22781 b
A confirmed exoplanet orbiting HD 22781.
Compared with Earth
- Mass
- About 4,338 times Earth's mass.
- Year
- A year here lasts about 1.4 Earth years.
Planet
- Radius
- Unknown
- Mass
- 4,338 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 528.1 days
- Average distance from its star
- 1.167 AU
Star
- Host star
- HD 22781
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,027 K
- Radius
- Unknown
- Mass
- 0.75 × Sun
- Age
- 4.8 billion years
System
- Distance from Earth
- 106.3 light-years (32.6 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2011
- Method
- Radial Velocity
- Facility
- Haute-Provence Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.