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K2-312 c
Orbiting HD 80653, discovered in 2023 (7528) by Roque de los Muchachos Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 1681.31 M⊕ |
| Orbital period | 871.32 Earth days (~2.4 Earth years) |
| Orbital eccentricity | 0.844 |
| Equilibrium temperature | 229 K (-44 °C) |
Host star — HD 80653
| Temperature | 5959 K (5686 °C) |
| Radius | 1.20 R☉ |
| Mass | 1.15 M☉ |
Location
| Distance from Earth | 109.9 pc (~358 light-years) |
| Right ascension / Declination | 140.3391 / 14.3679 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.