The calculated distance (air line) between Smolyaninovo and Preobrazheniye is approximately 78 miles respectively 125 kilometers.
By car or train, the actual journey to Preobrazheniye is certainly longer, as only the direct route (as the crow flies) between Smolyaninovo and Preobrazheniye has been calculated here.
Air line (approximately)
125 kilometers
68 nautical miles