HD 2638 b
A confirmed exoplanet orbiting HD 2638.
Compared with Earth
- Mass
- About 133 times Earth's mass.
- Year
- A year here lasts about 3.4 Earth days.
Planet
- Radius
- Unknown
- Mass
- 133.5 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 3.444 days
- Average distance from its star
- 0.04 AU
Star
- Host star
- HD 2638
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,186 K
- Radius
- 0.94 × Sun
- Mass
- 0.77 × Sun
- Age
- Unknown
System
- Distance from Earth
- 179.3 light-years (54.96 parsecs)
- Stars in system
- 3
- Known planets
- 1
Discovery
- Year
- 2005
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.