Guided tours by astronomers from the Observatoire.

Visitors stepping into the Perreault Building, whose architecture dates back to 1667, are entering one of France’s most ancient scientific institutions, located in the heart of the capital. Created by Colbert, the Observatoire de Paris has participated in major astronomical discoveries for the past three centuries.

The Look-out post(Observatory) of Meudon is implanted on a former(ancient) royal domain, fitted out at the beginning of the XVIth century with the construction of a castle the Renaissance for Duchess d’ Etampes. The current activity of the Look-out post(Observatory) feeds on diverse observations (telescopes of height, satellites) and recovers all the domains of the astronomy: we study not only the sun, but also the planets, the stars and the galaxies, as well as the interplanetary and intersidereal gas.

The tours are carried out by guides from “Pôle de l’espace et des étoiles” (formerly “Ciel Ouvert en Sologne”), an organization independent from the Observatoire de Paris located next to the Nancay site. They take place twice a day, at 11:00 am and 4:00 pm by appointment (closed on Tuesday, except in July-August).