HD 171238 b
A confirmed exoplanet orbiting HD 171238.
Compared with Earth
- Mass
- About 2,797 times Earth's mass.
- Year
- A year here lasts about 4.1 Earth years.
Planet
- Radius
- Unknown
- Mass
- 2,797 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 1,515 days
- Average distance from its star
- 2.518 AU
Star
- Host star
- HD 171238
- Spectral class
- Unknown
- Surface temperature
- Unknown
- Radius
- Unknown
- Mass
- 0.92 × Sun
- Age
- 7 billion years
System
- Distance from Earth
- 146.2 light-years (44.81 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2009
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.