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Public Universe

Exoplanet

HD 194490 b

261.69 light-years

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Discovery
Radial Velocity · 2022
Radius
12.4 Earth radii
Mass
3,561.903 (+560.6493 / −422.394) Earth masses
Orbital period
1.3092 × 10⁴ (+3,494.6464 / −2,509.9973) days
Semi-major axis
11.116 (+2.007 / −1.511) AU
Equilibrium temperature
90.87 (+7.66 / −7.66) K
Mass provenance
Mass

Measurements may come from different studies and need not form one self-consistent model. “Msini” is a minimum mass; a mass inferred from radius is an estimate. Equilibrium temperature is a model estimate, not a measured surface temperature or evidence of habitability.

NASA archive record and references ↗

Snapshot retrieved: 2026-10-11T04:15:07.688253+00:00