The Marseilles Observatory, created in 1702 by the Jesuits in their Collège de Sainte-Croix, on the Montée des Accoules, was taken over by the State in 1763 and, a century later, transferred to the Plateau Longchamp, where it still stands today.
The ANDROMEDE association introduces visitors to the night sky, the constellations, the planets, the movements of the moon and the sun, and helps them understand the universe...and offers tours of the room housing antique instruments. Planetarium shows for all ages are offered; weather permitting, these are followed by solar spot observations. Before and after these shows, exhibits and guided tours allow visitors to explore: the Observatory’s large refracting telescope, the 80-cm-diameter Foucault telescope, “The History of a Great Telescope,” “The Moon and the Planets’ Moons,” “Light and Astronomical Instruments,” and more...
The planetarium at the Historic Observatory of Marseille will be open to the public during summer vacation from Wednesday, July 8, to Friday, July 31, 2026, and from Monday, August 24, to Friday, August 28 (closed on weekends, on holidays, and on afternoons when we are open for evening sky-watching events).
The association offers three levels of astronomy courses and seminars, open to everyone.