The calculated distance (air line) between Mostytskyi Masyv and Chernihiv is approximately 78 miles respectively 126 kilometers.
By car or train, the actual journey to Chernihiv is certainly longer, as only the direct route (as the crow flies) between Mostytskyi Masyv and Chernihiv has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles