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16 Cyg B b

Orbiting 16 Cyg B, discovered in 1996 (7501) by Multiple Observatories via the Radial Velocity method.

Planet

RadiusUnknown
Mass565.74 M⊕
Orbital period798.50 Earth days (~2.2 Earth years)
Orbital eccentricity0.680
Equilibrium temperatureUnknown

Host star — 16 Cyg B

Temperature5750 K (5477 °C)
Radius1.13 R☉
Mass1.08 M☉

Location

Distance from Earth21.1 pc (~69 light-years)
Right ascension / Declination295.4656 / 50.5168

Last refreshed 2026-09-14 from NASA's Exoplanet Archive.