On the platform of the octagonal tower of the Hotel de Cluny, the little shed of boards, which had served as an observatory to Messier, the naval astronomer under Louis XVI.

• 当时在克吕尼宅子的八角塔的平台上，还可以看见一间小木板房子，那是梅西埃的天文台，就是做过路易十六的海军天文宫的梅西埃。