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About: GJ 3991     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:Star, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingplacedbo:Locationschema:Placecelestial bodystar New Facet based on Instances of this Class

GJ 3991 (also known as Gliese 3991 and G 203-47) is a binary star system located 24.2 light-years away in the constellation Hercules. It consists of a Red dwarf star with 20-30% the mass of the Sun, and a White dwarf star roughly 50% the mass of the sun. The two components orbit each other in a tight orbit only 0.11 astronomical units from each other, with an orbital period of only 14.71 days. Due to their small separation, the two objects have never been visually resolved and are merely predicted from the radial velocity changes of GJ 3991 A, making the system a spectroscopic binary.