HD 4208 b
A confirmed exoplanet orbiting HD 4208.
Compared with Earth
- Mass
- About 257 times Earth's mass.
- Year
- A year here lasts about 2.3 Earth years.
Planet
- Radius
- Unknown
- Mass
- 257.4 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 833 days
- Average distance from its star
- 1.662 AU
Star
- Host star
- HD 4208
- Spectral class
- G — sun-like
- Surface temperature
- 5,717 K
- Radius
- 0.846 × Sun
- Mass
- 0.883 × Sun
- Age
- 3.813 billion years
System
- Distance from Earth
- 111.5 light-years (34.19 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2001
- Method
- Radial Velocity
- Facility
- W. M. Keck Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.