EntityQ3239165· pop 29· linked from 448 articlesgalactic planeSign in to saveplane on which the majority of a disk-shaped galaxy's mass liesConnectionsluminous infrared galaxyEntitystarburst galaxyEntityinteracting galaxyEntitygalaxyEntitycelestial equatorEntitysupermassive black holeEntityradio galaxyEntityepochEntitylenticular galaxyEntitygalaxy groupEntityunbarred spiral galaxyEntityEarthConceptstarEntityMilky WayEntitymassEntityconstellationEntitydigital object identifierEntityInternational Astronomical UnionEntityquasarEntityplaneEntityCategoriesGalactic astronomy