The calculated distance (air line) between Novomoskovsk and Pyatykhatky is approximately 73 miles respectively 117 kilometers.
By car or train, the actual journey to Pyatykhatky is certainly longer, as only the direct route (as the crow flies) between Novomoskovsk and Pyatykhatky has been calculated here.
Air line (approximately)
117 kilometers
63 nautical miles