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81 Cet b
Orbiting 81 Cet, discovered in 2008 (7513) by Okayama Astrophysical Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 1051.06 M⊕ |
| Orbital period | 1005.57 Earth days (~2.8 Earth years) |
| Orbital eccentricity | 0.037 |
| Equilibrium temperature | Unknown |
Host star — 81 Cet
| Temperature | 4734 K (4461 °C) |
| Radius | 11.21 R☉ |
| Mass | 1.23 M☉ |
Location
| Distance from Earth | 101.3 pc (~330 light-years) |
| Right ascension / Declination | 39.4244 / -3.3964 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.