EntityQ7912530· pop 5· linked from 8 articlesValongo ObservatorySign in to saveorganization in Rio de Janeiro, BrazilConnectionsFederal University of Rio de JaneiroEntityastronomyEntityRio de JaneiroCityHamburgEntitygeographic coordinate systemEntitytelescopeEntityRio de JaneiroEntityastronomical objectEntityspectroscopyEntityHumboldt-Universität zu BerlinEntityprismEntityobservatoryEntitysextantEntitytheodoliteEntityrefracting telescopeEntityastrophotographyEntityreflecting telescopeEntityCarl Zeiss AGCompanypendulum clockEntitychronographEntityCategoriesAstronomical observatories in BrazilBuildings and structures in Rio de Janeiro (city)Federal University of Rio de Janeiro