Teegarden's Star b
A confirmed exoplanet orbiting Teegarden's Star.
Compared with Earth
- Mass
- About 1.2 times Earth's mass.
- Temperature
- About 4 °C (39 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 1.1 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 4.9 Earth days.
Planet
- Radius
- Unknown
- Mass
- 1.16 × Earth
- Density
- Unknown
- Equilibrium temperature
- 277 K
- Starlight received
- 1.08 × Earth
- Orbital period
- 4.906 days
- Average distance from its star
- 0.0259 AU
Star
- Host star
- Teegarden's Star
- Spectral class
- M — red dwarf
- Surface temperature
- 3,034 K
- Radius
- 0.12 × Sun
- Mass
- 0.097 × Sun
- Age
- Unknown
System
- Distance from Earth
- 12.49 light-years (3.831 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2019
- Method
- Radial Velocity
- Facility
- Calar Alto Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.