Alpha Centauri - Planets

Planets

Until the last decade of the twentieth century, technologies did not exist that could detect planets outside the Solar System.

The Alpha Centauri B system
Companion
Mass Semimajor axis
Orbital period
Eccentricity Radius
b 1.13 ± 0.09 M 0.04 3.2357 ± 0.0008

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