GJ 3470 b
A confirmed exoplanet orbiting GJ 3470.
Compared with Earth
- Size
- About 4.6 times Earth's width.
- Mass
- About 14 times Earth's mass.
- Temperature
- About 320 °C (609 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.3 Earth days.
Planet
- Radius
- 4.57 × Earth
- Mass
- 13.9 × Earth
- Density
- 0.8 g/cm³
- Equilibrium temperature
- 593.5 K
- Starlight received
- Unknown
- Orbital period
- 3.337 days
- Average distance from its star
- 0.0355 AU
Star
- Host star
- GJ 3470
- Spectral class
- M — red dwarf
- Surface temperature
- 3,600 K
- Radius
- 0.547 × Sun
- Mass
- 0.539 × Sun
- Age
- Unknown
System
- Distance from Earth
- 95.96 light-years (29.42 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2012
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.