Tau Ceti e
Artistic depiction of a terrestrial exoplanet | |
| Discovery | |
|---|---|
| Discovery date | December 19, 2012 |
| Radial velocity | |
| Designations | |
| 52 Ceti e, Tau Ceti e | |
| Orbital characteristics | |
| 0.552 AU | |
| 168 d | |
| Physical characteristics | |
| Mass | ≥3.93 M🜨 |
Tau Ceti e, also called 52 Ceti e, is a doubtful exoplanet candidate proposed to be orbiting Tau Ceti, first detected in 2012 by statistical analyses of the star's variations in radial velocity obtained using HIRES, AAPS and HARPS. Its possible properties were refined in 2017, where it was one of two planets recovered from new data, the other being Tau Ceti f. Studies published in 2021 and 2025 have been unable to confirm this planet.