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HD 210277 b
Orbiting HD 210277, discovered in 1998 (7503) by W. M. Keck Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 410.00 M⊕ |
| Orbital period | 442.19 Earth days (~1.2 Earth years) |
| Orbital eccentricity | 0.480 |
| Equilibrium temperature | Unknown |
Host star — HD 210277
| Temperature | 5538 K (5265 °C) |
| Radius | 1.07 R☉ |
| Mass | 1.01 M☉ |
Location
| Distance from Earth | 21.3 pc (~69 light-years) |
| Right ascension / Declination | 332.3748 / -7.5506 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.