| operator | name | named after | heritage designation | image | date founded | Height (m) | city | administrative división | continent | Country | latitude (°) | longitude (°) | Website | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Asociación Argentina Amigos de la Astronomía |  | 04/01/1929 | Buenos Aires | Buenos Aires | Americas | Argentina | -34.5999984741 | -58.4333343506 | Website | Map | ||||
| La Plata Astronomical Observatory |  | 22/11/1883 | La Plata | Buenos Aires (province) | Americas | Argentina | -34.9000015259 | -57.9166679382 | Website | Map | ||||
| San José Observatory |  | 1870 | Buenos Aires | Buenos Aires | Americas | Argentina | -34.5999984741 | -58.4000015259 | Website | Map | ||||
| Planetario de Buenos Aires | 1967 | Buenos Aires | Buenos Aires | Americas | Argentina | -34.5666656494 | -58.4000015259 | Website | Map | |||||
| Observatorio Astronómico de Mercedes |  | 15/08/1978 | 44 | Buenos Aires | Buenos Aires | Americas | Argentina | -34.5697220000 | -59.4130560000 | Website | Map |