EntityQ1037993· pop 29· linked from 895 articlesNGC 657Sign in to savegalaxyConnectionslist of NGC objects (1–1000)EntityepochEntityHeart NebulaEntityNGC 241EntityNGC 945EntitystarEntitygalaxyEntityconstellationEntitynebulaEntityAndromeda GalaxyEntityexoplanetEntitydigital object identifierEntityastronomerEntityCassiopeiaEntityJohn Frederick William HerschelEntitystar clusterEntitydeclinationEntityTriangulum GalaxyEntityright ascensionEntityNew General CatalogueEntityCategoriesAstronomical objects discovered in 1831Cassiopeia (constellation)Discoveries by John HerschelNGC objectsOpen clusters