NGC 663 is a relatively large, young cluster in Cassiopeia. It spans 16 arcminutes and is easily observed with binoculars.
Telescope: TS-Optics 10 in. f/5 Newtonian
Mount: iOptron CEM60
Guiding: QHY5L-II-M on 60mm guide scope
Camera: Modified Canon 650D; ISO 1600
Exposures: 20 @ 5 min.