Charles Joseph Étienne Wolf (9 November 1827 in Vorges – 4 July 1918) was a French astronomer. In 1862, Urbain Le Verrier offered him a post as assistant at the Paris Observatory. In 1867 he and Georges Rayet discovered Wolf–Rayet stars. He was elected to the positions of Vice-President (1897) and President (1898) of the French Academy of Sciences. References External links MNRAS 79 (1919) 235 (p. 451) Obs 41 (1918) 365 The Pulfrich Effect: Wolf (1865) 1827 births 1918 deaths People from Aisne 19th-century French astronomers École Normale Supérieure alumni Members of the French Academy of Sciences Members of the Ligue de la patrie française