Exoplanet · Proxima Centauri
Proxima Cen d
Orbit0.029 AU
Year5.12 days
Mass≥ 0.26 M⊕
Temperature~282 K (estimated)
It circles Proxima Centauri once every 5.12 days, 0.029 AU out: about 13 times closer than Mercury is to the Sun.
Found in 2025 by the radial velocity method, which measures the star's wobble. That gives a minimum mass, so it could be heavier.
Sources
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