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Kapteyn c
Orbiting Kapteyn, discovered in 2014 (7519) by Multiple Observatories via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 7.00 M⊕ |
| Orbital period | 121.54 Earth days (~0.3 Earth years) |
| Orbital eccentricity | 0.230 |
| Equilibrium temperature | Unknown |
Host star — Kapteyn
| Temperature | 3550 K (3277 °C) |
| Radius | 0.29 R☉ |
| Mass | 0.28 M☉ |
Location
| Distance from Earth | 3.9 pc (~13 light-years) |
| Right ascension / Declination | 77.9587 / -45.0430 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.