The Bubble Nebula, NGC 7635, is 7 light-years across – about one-and-a-half times the distance from our sun to its nearest stellar neighbor, Alpha Centauri – and resides 7,100 light-years from Earth in the constellation Cassiopeia. Sharpless 157, also known as the Lobster Claw Nebula (lower left), is a bright emission nebula in the constellation Cassiopeia. It lies just south of the Bubble Nebula.

TS 80mm f6 APO triplet refractor
ZWO ASI 071MC Pro + TS 0,79 reducer. Temp: -5c - gain 90
Optolong L-eXtreme filter
Ioptron CEM 25p mount Exposure:
115x 300sec
Total integration: ~ 9 hours
Acquisition: ASIAIR PRO
Post Processing: Astro Pixel Processor: (extract Ha and OIII, recombine as HOO and Ha-OIII colour algorithms)
Photoshop CS5 - Lightroom - Carboni's actions