Showing posts with label NGC 457. Show all posts
Showing posts with label NGC 457. Show all posts

October 1, 2020

NGC 457, the Owl or ET Cluster (Sept. 2020)

NGC 457 is one of my favorite open clusters.  Through a telescope, it is stunning, partly because of the contrast between the brighter stars and the dimmer diamonds.  This image is 19x300" with the Atik 460EXC through the 203mm f/4.95 Synta-ONTC Newtonian and an Astronomik CLS filter.