In the same year Foerster , together with his co-worker Otto Lesser , discovered the asteroid ( 62 ) Erato .
When Bruhns transferred to Leipzig in 1860 , Foerster became his successor as first assistant .
In the same year Foerster , together with Foerster 's co-worker Otto Lesser , discovered the asteroid ( 62 ) Erato .
When Bruhns transferred to Leipzig in 1860 , Foerster became his successor as first assistant .