In the heart of the constellation Cassiopeia, approximately 7,900 light-years from Earth, lies NGC 457, one of the most striking open clusters in the autumn sky. Known by the nicknames "Owl Cluster" or "ET Cluster," this group of stars immediately catches the eye due to the peculiar arrangement of its stars, which appear to outline the silhouette of a creature with large, bright eyes.
In the heart of the constellation Cassiopeia, approximately 7,900 light-years from Earth, lies NGC 457, one of the most striking open clusters in the autumn sky. Known by the nicknames "Owl Cluster" or "ET Cluster," this group of stars immediately catches the eye due to the peculiar arrangement of its stars, which appear to outline the silhouette of a creature with large, bright eyes.