Caldwell 24, also known as NGC 1275 and "Perseus A", is a Seyfert galaxy in the constellation of Perseus with classification S0. It lies at a distance of ~240 million light-years. It is situated near the center of the large Perseus Cluster of galaxies, which is one of the most massive objects in the known universe, containing thousands of galaxies immersed in a vast cloud of multimillion-degree gas.This image comprises 12 x Luminance (120 seconds each) and 5 x Red, Green and Blue (120, 121 and 97 seconds each), 0.5m f/2.9 ASA Astrograph with FLI ML3200 camera at an altitude of 65 degrees over two nights , 27 November 2016 and 27 August 2017. The field of view is 34’ x 23’.
Hills Observatory: 1 January 2013 to 30 March 2019