NGC-457 A bright open star cluster located in the constellation of Cassiopiea. This cluster is often called the "Owl cluster"or "The E.T. Cluster". The cluster is dominated by the 5.5 magnitude star Phi Cassiopieae. The cluster is somewhat kite-shaped. This cluster lies about 7900 light years from Earth. It was discovered by Sir William Herschel in 1787.
This image, acquired on October 5, 2019 is a 36 minute integration of 6 minute exposures through the Celestron C-11, operating at f/2, using the HyperStar III imaging system and the ZWO ASI 071MC color CMOS camera, operating at -5 degrees below ambient temperature and binned 1 X 1. Guided, captured and combined using Maxim DL5 Pro. Post processed using PhotoShop CS2, Gradient XTerminator, StarShrink, Carboni's Astro Tools and NoiseWare.