Gliese 581d
Astronomical discovery
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Gliese 581d is a doubtful, and frequently disputed, exoplanet candidate orbiting within the Gliese 581 system, approximately 20.4 light-years away in the Libra constellation. It was the third planet claimed in the system and the fourth or fifth in... Wikipedia
Orbital period: 67 days
Radius: 8,709.3 mi
Discovered: April 24, 2007
Discoverer: Stéphane Udry
Distance to Earth: 20.3 light years
Mass: ≥5.6±0.6 M🜨
Orbital period (sidereal): 66.64±0.08 d