HD 180902 b
A confirmed exoplanet orbiting HD 180902.
Compared with Earth
- Mass
- About 536 times Earth's mass.
- Year
- A year here lasts about 1.4 Earth years.
Planet
- Radius
- Unknown
- Mass
- 535.5 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 510.9 days
- Average distance from its star
- 1.4 AU
Star
- Host star
- HD 180902
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,961 K
- Radius
- 4.16 × Sun
- Mass
- 1.41 × Sun
- Age
- Unknown
System
- Distance from Earth
- 341.1 light-years (104.6 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2009
- Method
- Radial Velocity
- Facility
- W. M. Keck Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.