EntityQ128044· pop 17· linked from 9 articlesBishop's RingSign in to saveOptical phenomenonConnectionsJapanCountryvolcanoEntityHonoluluEntityWayback MachineEntityKrakatoaEntitydiffractionEntityEyjafjallajökullEntityhaloEntityPinatuboEntity22° haloEntityEduard Hagenbach-BischoffEntityAlbert RiggenbachEntityecclesiastical ringEntityCategoriesAtmospheric optical phenomena