EntityQ1108440· pop 28· linked from 4 articlesNGC 3997Sign in to savegalaxyConnectionslist of stars in LeoEntityQ1105445Entitylist of NGC objects (3001–4000)EntityepochEntityMessier 109EntityNGC 3977EntityNGC 3632EntitystarEntitygalaxyEntityNASAConceptlight-yearEntityconstellationEntitynebulaEntitysupernovaEntityexoplanetEntityLeoEntitydigital object identifierEntityparsecEntityInternational Astronomical UnionEntityJohn Frederick William HerschelEntityCategoriesAstronomical objects discovered in 1827Barred spiral galaxiesDiscoveries by John HerschelIRAS catalogue objectsLeo (constellation)MCG objectsNGC objectsPrincipal Galaxies Catalogue objectsUGC objects