EntityQ177114· pop 31· linked from 549 articlesQ177114Sign in to savespiral galaxyConnectionsQ1105445EntityepochEntityNGC 3977Entitylist of NGC objects (3001–4000)EntityNGC 3632EntitySunConceptBlack holeConceptmassEntityInternational Standard Book NumberEntitylight-yearEntityconstellationEntityUrsa MajorEntitydigital object identifierEntityInternational Standard Serial NumberEntityparsecEntitysolar massEntityright ascensionEntitydeclinationEntityNew General CatalogueEntityastronomical coordinate systemEntityCategoriesAstronomical objects discovered in 1791Barred spiral galaxiesNGC objectsPrincipal Galaxies Catalogue objectsUrsa Major