HD 152581 b
A confirmed exoplanet orbiting HD 152581.
Compared with Earth
- Mass
- About 594 times Earth's mass.
- Year
- A year here lasts about 1.9 Earth years.
Planet
- Radius
- Unknown
- Mass
- 594 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 686.5 days
- Average distance from its star
- 1.66 AU
Star
- Host star
- HD 152581
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,027 K
- Radius
- 5.14 × Sun
- Mass
- 1.3 × Sun
- Age
- Unknown
System
- Distance from Earth
- 540.6 light-years (165.8 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2011
- Method
- Radial Velocity
- Facility
- W. M. Keck Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.