The calculated distance (air line) between Chernomorskoye and Novofedorivka is approximately 50 miles respectively 80 kilometers.
By car or train, the actual journey to Novofedorivka is certainly longer, as only the direct route (as the crow flies) between Chernomorskoye and Novofedorivka has been calculated here.
Air line (approximately)
80 kilometers
43 nautical miles