HD 109286 b
A confirmed exoplanet orbiting HD 109286.
Compared with Earth
- Mass
- About 950 times Earth's mass.
- Temperature
- About -14 °C (7 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 71% of the starlight Earth gets from the Sun.
- Year
- A year here lasts about 1.4 Earth years.
Planet
- Radius
- Unknown
- Mass
- 950.3 × Earth
- Density
- Unknown
- Equilibrium temperature
- 259.4 K
- Starlight received
- 0.709 × Earth
- Orbital period
- 520.1 days
- Average distance from its star
- 1.259 AU
Star
- Host star
- HD 109286
- Spectral class
- G — sun-like
- Surface temperature
- 5,694 K
- Radius
- 1.089 × Sun
- Mass
- 0.98 × Sun
- Age
- Unknown
System
- Distance from Earth
- 180.7 light-years (55.42 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2021
- Method
- Radial Velocity
- Facility
- Haute-Provence Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.