alf Tau b
A confirmed exoplanet orbiting alf Tau.
Compared with Earth
- Mass
- About 2,056 times Earth's mass.
- Year
- A year here lasts about 1.7 Earth years.
Planet
- Radius
- Unknown
- Mass
- 2,056 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 629 days
- Average distance from its star
- 1.46 AU
Star
- Host star
- alf Tau
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,055 K
- Radius
- 45.1 × Sun
- Mass
- 1.13 × Sun
- Age
- 6.6 billion years
System
- Distance from Earth
- 66.64 light-years (20.43 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2015
- Method
- Radial Velocity
- Facility
- Multiple Observatories
Data from the NASA Exoplanet Archive, synced October 14, 2026.