The Lyon-Meudon Extragalactic Database (LEDA) is a comprehensive astronomical database that focuses on extragalactic objects, such as galaxies and galaxy clusters. It provides detailed information, including positions, magnitudes, and morphological classifications, making it a valuable resource for researchers studying the universe beyond our Milky Way. LEDA is maintained by the Lyon Observatory in France and is widely used by astronomers worldwide. The database includes data from various surveys and catalogs, allowing users to access a wealth of information about over 1.5 million extragalactic objects, facilitating research in cosmology and astrophysics.