Charles Joseph ÃÂtienne Wolf (9 November 1827 in Vorges â 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 WolfâÂÂRayet stars.
He was elected to the positions of vice-president (1897) and president (1898) of the French Academy of Sciences.