23 Librae - Planetary System

Planetary System

In 1999 an exoplanet 23 Librae b was announced orbiting 23 Librae, and in 2009 an additional planet was detected. Examination of the system in the infrared using the Spitzer Space Telescope did not reveal any excess emission, which might otherwise suggest the presence of a circumstellar debris disk of orbiting dust.

The 23 Librae system
Companion
Mass Semimajor axis
Orbital period
Eccentricity Radius
b ≥ 1.59 ± 0.02 MJ 0.81 ± 0.02 258.19 ± 0.07 0.233 ± 0.002
c ≥ 0.82 ± 0.03 MJ 5.8 ± 0.5 5,000 ± 400 0.12 ± 0.02

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