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Allan Sandage was a doctoral student of Walter Baade, who discovered 1036 Ganymed.
Halton Arp was the doctoral student of Walter Baade who discovered 1036 Ganymed.
1036 Ganymed | discoverer | Walter Baade Walter Baade | doctoral student | Allan Sandage 1036 Ganymed | discoverer | Walter Baade Walter Baade | doctoral student | Halton Arp