 The Métropole of Nantes is therefore considering a study (at the next mandate), to decide whether or not the opportunity of a large planetarium project, like those of Rennes, Dunkirk, or Lyon, at the scale of its population basin.coordinates = 

This small municipal square of 690 m2 (7427 sq ft) located between the back of the planetarium and the Rue de l'Hermitage, has in its center a set of sculptures, including a giant sundial, made by Jean-Michel Ansel, sundial maker, entitled " Structures astronomiques ", representing the movement of the Earth around the Sun, eclipses of the Moon and the Sun, the retrograde movement of Mars, the sunshine of the Earth in real time, the planets scaled to each other etc.This square is accessible either by the staircase located between Misery street and Hermitage street, or from the Acadiens street bypassing the planetarium.