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55 Cnc B b
Orbiting 55 Cnc B, discovered in 2025 (7530) by Mauna Kea Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 3.50 M⊕ |
| Orbital period | 6.80 Earth days (~0.0 Earth years) |
| Orbital eccentricity | 0.000 |
| Equilibrium temperature | Unknown |
Host star — 55 Cnc B
| Temperature | 3286 K (3013 °C) |
| Radius | 0.27 R☉ |
| Mass | 0.26 M☉ |
Location
| Distance from Earth | 12.5 pc (~41 light-years) |
| Right ascension / Declination | 133.1679 / 28.3153 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.