EntityQ1168920· pop 28· linked from 447 articlesNGC 7721Sign in to savegalaxyConnectionslist of stars in AquariusEntitylist of NGC objects (7001–7840)EntitystarEntitygalaxyEntitylight-yearEntityconstellationEntitynebulaEntityWilliam HerschelEntityexoplanetEntitydigital object identifierEntityAquariusEntityastronomerEntityInternational Astronomical UnionEntityparsecEntityredshiftEntitystar clusterEntityapparent magnitudeEntityright ascensionEntitydeclinationEntityspiral galaxyEntityCategoriesAquarius (constellation)Astronomical objects discovered in 1785Discoveries by William HerschelIRAS catalogue objectsLEDA objectsNGC objectsPrincipal Galaxies Catalogue objectsUnbarred spiral galaxies