EntityQ1124608· pop 29· linked from 312 articlesQ1124608Sign in to saveplanetary nebula in the constellation Triangulum AustraleConnectionsTriangulum AustraleEntityepochEntityQ544846EntityQ1119115EntityArp 240EntityNGC 5090 and NGC 5091EntitystarEntitygalaxyEntityconstellationEntitynebulaEntityHubble Space TelescopeEntityradiusEntityexoplanetEntitydigital object identifierEntityJohn Frederick William HerschelEntitystar clusterEntityapparent magnitudeEntityright ascensionEntitydeclinationEntityplanetary nebulaEntityCategoriesNGC objectsPlanetary nebulaeTriangulum Australe