input: 1036_Ganymed | discoverer | Walter_Baade Walter_Baade | doctoralStudent | Halton_Arp Walter_Baade | doctoralStudent | Allan_Sandage Walter_Baade | birthPlace | Preußisch_Oldendorf Walter_Baade | almaMater | University_of_Göttingen
target: Allan Sandage and Halton Arp were both doctoral students of Walter Baade, the discoverer of 1036 Ganymed. Baade was born in Preussisch Oldendorf and studied at the University of Gottingen.