The Soap Bubble Nebula is a planetary nebula in Cygnus. It was discovered by amateur astronomer Dave Jurasevich in 2007. If you look closely you can see the central star, which is faint, but very blue. I used a Celestron Edge HD 925 with a 0.7 reducer, an ASI 2600MC Pro, IDAS NBZ filter. I managed to get 15 hrs total exposure time, with 90 x 600s subs. I processed it in SiriL, Starnet, GIMP & G'MIC.