Faint planetary nebula in Cassiopeia. This is a 3 color narrowband image, 45x900 Seconds of HA used as Red 57x900 Seconds of SII used as Green 43x900 Seconds of OIII used as Blue Intes-Micro MN-65 Sbig ST-8300M MI-250 Mount Full size, https://c1.staticflickr.com/9/8162/29220689402_31fd8ac08a_o.jpg