NGC 457 (ET Cluster, Owl Cluster, Dragonfly Cluster, Caldwell C13, Mel 7, Cr12) is an open star cluster located in constellation Cassiopeia and about 7900 lightyears away from Earth.
Setting : Nikon D7500 and TAL200K f/8.5, ISO6400, 11x60s exposure time. Camera control with DigiCamControl and Stellarium connected to the Mount. Stacking using APP, editing with CS4 and DeNoise AI for noise reduction.