EntityQ2154976· pop 11· linked from 3 articlesRitcheySign in to savelunar impact craterConnectionsNASAConceptgeographic coordinate systemEntityInternational Standard Book NumberEntitydiameterEntitydigital object identifierEntityimpact craterEntitybibcodeEntityeponymEntityApollo 16EntityCambridge University PressEntityPatrick MooreEntityQ22908627Entitylunar craterEntityAlbategniusEntityselenographic coordinatesEntityGeorge Willis RitcheyEntityAntonín RüklEntityThomas William WebbEntityEwen WhitakerEntityPaul SpudisEntityCategoriesImpact craters on the MoonLQ20 quadrangle