He discovered two asteroids from his private observatory at #9, Kietz (now #43, Kietzerstraße), Driesen, by comparing star maps with the sky seen through his telescope.
Dia menemukan dua buah asteroid dari observatorium pribadinya di #9, Kietz (sekarang #43, Kietzerstraße), Driesen, dengan membandingkan peta bintang dengan langit yang ia lihat melalui teleskop.