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About: Sigma Cygni     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.org associated with source document(s)

Type: Thingplacedbo:Locationschema:Placecelestial bodyyago:WikicatB-typeStarsyago:WikicatB-typeSupergiantsyago:WikicatBayerObjectsyago:CelestialBody109239740yago:NaturalObject100019128yago:Object100002684yago:PhysicalEntity100001930staryago:Star109444100yago:Supergiant109450708yago:Whole100003553 New Facet based on Instances of this Class

Sigma Cygni, Latinised from σ Cygni, is a blue supergiant star in the constellation Cygnus. Its apparent magnitude is 4.2. It belongs to the Cygnus OB4 stellar association and is located approximately 3,300 light years away from Earth. Because of its location in the galactic disk, σ Cyg is obstructed by interstellar dust and is reddened by around 0.2 magnitudes and loses about 0.6 magnitudes at visual wavelengths. Allowing for this, the star is over 50,000 times as luminous as the sun.