YZ Cet
YZ Cet is an M4.5 V star 12.1 light years away with 3 known planets. They were all found in 2017.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| YZ Cet b | 2.021 days | 0.01634 AU | at least 0.7 | 2017 | Radial Velocity | |
| YZ Cet c | 3.06 days | 0.02156 AU | at least 1.14 | 2017 | Radial Velocity | |
| YZ Cet d | 4.656 days | 0.02851 AU | at least 1.09 | 2017 | 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 M4.5 V
- 3,151 K surface temperature
- 0.142 times the mass of the Sun
- 0.157 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.