The calculated distance (air line) between Yŏnggwang-ŭp and Anju is approximately 99 miles respectively 159 kilometers.
By car or train, the actual journey to Anju is certainly longer, as only the direct route (as the crow flies) between Yŏnggwang-ŭp and Anju has been calculated here.
Air line (approximately)
159 kilometers
86 nautical miles