HD 149143 b
A confirmed exoplanet orbiting HD 149143.
Compared with Earth
- Mass
- About 423 times Earth's mass.
- Year
- A year here lasts about 4.1 Earth days.
Planet
- Radius
- Unknown
- Mass
- 422.7 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 4.072 days
- Average distance from its star
- 0.053 AU
Star
- Host star
- HD 149143
- Spectral class
- G — sun-like
- Surface temperature
- 5,856 K
- Radius
- 1.44 × Sun
- Mass
- 1.2 × Sun
- Age
- 4.28 billion years
System
- Distance from Earth
- 239 light-years (73.28 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2005
- Method
- Radial Velocity
- Facility
- Haute-Provence Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.