HD 31253 b
A confirmed exoplanet orbiting HD 31253.
Compared with Earth
- Mass
- About 197 times Earth's mass.
- Year
- A year here lasts about 1.3 Earth years.
Planet
- Radius
- Unknown
- Mass
- 197.1 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 466 days
- Average distance from its star
- 1.26 AU
Star
- Host star
- HD 31253
- Spectral class
- F — yellow-white
- Surface temperature
- 6,130 K
- Radius
- 1.75 × Sun
- Mass
- 1.7 × Sun
- Age
- Unknown
System
- Distance from Earth
- 189.6 light-years (58.14 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2010
- Method
- Radial Velocity
- Facility
- W. M. Keck Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.