The calculated distance (air line) between Novofedorovka and Pervomayskoye is approximately 45 miles respectively 73 kilometers.
By car or train, the actual journey to Pervomayskoye is certainly longer, as only the direct route (as the crow flies) between Novofedorovka and Pervomayskoye has been calculated here.
Air line (approximately)
73 kilometers
39 nautical miles