HD 154857 b
A confirmed exoplanet orbiting HD 154857.
Compared with Earth
- Mass
- About 779 times Earth's mass.
- Year
- A year here lasts about 1.1 Earth years.
Planet
- Radius
- Unknown
- Mass
- 778.7 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 408.6 days
- Average distance from its star
- 1.29 AU
Star
- Host star
- HD 154857
- Spectral class
- G — sun-like
- Surface temperature
- 5,589 K
- Radius
- 2.3 × Sun
- Mass
- 1.96 × Sun
- Age
- Unknown
System
- Distance from Earth
- 206.9 light-years (63.45 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2004
- Method
- Radial Velocity
- Facility
- Anglo-Australian Telescope
Data from the NASA Exoplanet Archive, synced October 14, 2026.