The calculated distance (air line) between Astrakhan and Krasnyy Yar is approximately 19 miles respectively 31 kilometers.
By car or train, the actual journey to Krasnyy Yar is certainly longer, as only the direct route (as the crow flies) between Astrakhan and Krasnyy Yar has been calculated here.
Air line (approximately)
31 kilometers
17 nautical miles