Tau Geminorum
Listed as tau Gem in the NASA Exoplanet Archive.
Tau Geminorum is a K2 III star 367 light years away with 1 known planet. It was found in 2013.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| tau Gem b | 305.5 days | 1.17 AU | at least 6,547 | 2013 | Radial Velocity |
"At least" is a minimum mass. Radial velocity can only measure mass times the sine of the orbit's tilt.
Star
- Spectral type K2 III
- 4,388 K surface temperature
- 2.3 times the mass of the Sun
- 26.8 times the radius of the Sun
Data from the NASA Exoplanet Archive, as of October 3, 2026. In the 3D view sizes and distances are compressed and every orbit is drawn in the same plane. Where each planet sits along its orbit is made up.