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Exoplanet

GJ 273 b

19.31 light-years

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Discovery
Radial Velocity · 2017
Radius
1.51 Earth radii
Mass
2.89 (+0.27 / −0.26) Earth masses
Orbital period
18.6498 (+5.9 × 10⁻³ / −5.2 × 10⁻³) days
Semi-major axis
0.0911 (+1.9 × 10⁻⁵ / −1.7 × 10⁻⁵) AU
Equilibrium temperature
292.47 (+14.13 / −14.13) K
Mass provenance
Msini

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