ROXs 12 b
A confirmed exoplanet orbiting ROXs 12.
Compared with Earth
- Mass
- About 5,085 times Earth's mass.
Planet
- Radius
- Unknown
- Mass
- 5,085 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- Unknown
- Average distance from its star
- 210 AU
Star
- Host star
- ROXs 12
- Spectral class
- M — red dwarf
- Surface temperature
- 3,850 K
- Radius
- Unknown
- Mass
- 0.87 × Sun
- Age
- 0.0076 billion years
System
- Distance from Earth
- 445.7 light-years (136.7 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2013
- Method
- Imaging
- Facility
- W. M. Keck Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.