The reception, included in the registration fee, will take place in the Paris Observatory - room Cassini located upstairs in Perrault building (number 2 on the map below).

Please note that the only entrance is located on 77 avenue Denfert Rochereau (the entrance on 61 avenue de l’Observatoire is closed and there is no entrance on Boulevard Arago)

The Observatory is at a walking distance (about 800m) from the Conference Center. You can find here a map to locate the Observatory and the Marriott Rive Gauche where the rest of the conference will take place.