Бюро долгот
In 1836 he went to the Observatoire de Paris as a student astronomer. He worked at the Bureau des Longitudes from 1843 to 1854, working on meteorology. He was elected to the Académie des Sciences in 1843. He won the Lalande Prize in 1843 for the discovery of comet C/1843 J1. He also discovered comets C/1844 N1 and C/1847 N1.