M27, the Dumbbell Nebula.
This is a planetary nebula and was the first of its kind discovered. Despite their name, planetary nebulae have nothing to do with planets but are rather formed by ionised gas ejected from red giant stars.
Telescope: WilliamOptics ZS81
Reducer/Field Flattener: William Optics Flat 6A-III
Mount: SkyWatcher HEQ5-Pro
Camera: ZWO ASI533MC Pro cooled to 0°C
Guide Camera: ZWO ASI 120MM
Guide Scope: William Optics Uniguide 50mm
Filter: Optolong L-eNhance
Lights: 14x360 seconds
Bias: 10 frames