| English | eng-000 |
| General Catalogue of Nebulae and Clusters | |
| Deutsch | deu-000 | General Catalogue of Nebulae and Clusters |
| français | fra-000 | General Catalogue |
| Lëtzebuergesch | ltz-000 | General Catalogue of Nebulae and Clusters |
| português | por-000 | Catálogo Geral |
| español | spa-000 | Catálogo General |