Oskar Lesser Asteroids discovered : 1 62 Erato September 14 1860 with W. J. Förster Oskar Lesser was a German astronomer who co-discovered asteroid 62 Erato with Wilhelm Julius Foerster on September 14 , 1860 in Berlin . This was the first co-discovery on record .  This astronomer -related article is a stub . You can help Wikipedia by expanding it . Categories : Astronomer stubs | Year of birth missing | 19th century astronomers | German astronomers | Asteroid discoverers | Lists of asteroids In other languages : Deutsch 