The calculated distance (air line) between Scharnhorst-Ost and Bochum is approximately 14 miles respectively 23 kilometers.
By car or train, the actual journey to Bochum is certainly longer, as only the direct route (as the crow flies) between Scharnhorst-Ost and Bochum has been calculated here.
Air line (approximately)
23 kilometers
13 nautical miles