GJ 581 c

GJ 581 c is a mini-neptune orbiting GJ 581, completing an orbit every 13 days, about 21 light-years from Earth. It was discovered in 2007 using the radial velocity method.

View the GJ 581 system (3 known planets).

GJ 581 c lies in the habitable zone of its star, the range of orbits where liquid water could in principle exist on a planet's surface. This makes it a candidate of interest for habitability studies — but lying in the habitable zone is not evidence that the planet is habitable or inhabited; its atmosphere and surface conditions remain unknown.

• Child ofGliese 581
• OrbitsGliese 581
• Member of systemGJ 581 system
• Discovered by methodRadial Velocity Method
• Discovered atLa Silla Observatory
• Catalogued inNASA Exoplanet Archive
• Habitable-zone candidateHabitable zone