astronomiques
Astronomiques is the plural form of the French adjective astronomique, meaning related to astronomy or astronomical. In standard usage, the adjective describes nouns and agrees with gender and number, so it appears as astronomique in the singular and astronomiques in the plural (for example, objets astronomiques or phénomènes astronomiques).
Etymology and usage: The word derives from the Greek root astronom- meaning star, via Latin and French
Astronomiques as a title: Beyond its ordinary adjectival use, Astronomiques has been employed as a proper title
See also: Astronomy, list of astronomical terms, celestial objects.