The calculated distance (air line) between Novofedorovka and Chernomorskoye is approximately 51 miles respectively 82 kilometers.
By car or train, the actual journey to Chernomorskoye is certainly longer, as only the direct route (as the crow flies) between Novofedorovka and Chernomorskoye has been calculated here.
Air line (approximately)
82 kilometers
44 nautical miles