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Gliese 581b or Gl 581b is an exoplanet orbiting within the Gliese 581 system, located 20.5 light-years (6.3 parsecs) away from Earth in the Libra constellation. It is the first planet discovered of three confirmed in the system so far, and the second in order from the star.
Gliese 581b is the most massive planet known to be orbiting Gliese 581 and was the first to be discovered. [5] It is about 20 times the mass of Earth and completes an orbit in 5.37 days. [ 12 ]
Gliese 581c / ˈ ɡ l iː z ə / (Gl 581c or GJ 581c) is an exoplanet orbiting within the Gliese 581 system. It is the second planet discovered in the system and the third in order from the star . With a mass about 6.8 times that of the Earth , it is classified as a super-Earth (a category of planets with masses greater than Earth's up to ten ...
Libra is home to the Gliese 581 planetary system, which consists of the star Gliese 581 and three confirmed planets. This system gained attention in the late 2000s and early 2010s as the subject of some of the earliest claims of potentially habitable exoplanets, [ 10 ] [ 11 ] but it is now known that Gliese 581c is too hot to be potentially ...
Pages in category "Gliese 581" The following 6 pages are in this category, out of 6 total. ... Gliese 581; G. Gliese 581b; Gliese 581c; Gliese 581d; Gliese 581e ...
Dubbed Gliese 12 b, the planet takes 12.8 days to orbit a star that is 27% of the sun’s size. It’s not yet known whether the exoplanet has an atmosphere.
Gliese 581g / ˈ ɡ l iː z ə / was a candidate exoplanet postulated to orbit within the Gliese 581 system, twenty light-years from Earth. [9] It was discovered by the Lick–Carnegie Exoplanet Survey, and was the sixth planet claimed to orbit the star; [10] however, its existence could not be confirmed by the European Southern Observatory (ESO) / High Accuracy Radial Velocity Planet Searcher ...
Gliese 12 b, which orbits a cool, red dwarf star located just 40 light-years away, promises to tell astronomers more about how planets close to their stars retain or lose their atmospheres. In ...