Object: The Western Veil Nebula (also known as Caldwell 34), consisting of NGC 6960 (the "Witch’s Broom", "Finger of God", Lacework Nebula, "Filamentary Nebula") near the foreground star 52 Cygni; The nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus; a supernova remnant consisting of oxygen, sulfur, and hydrogen gas. This area of Cygnus is densely populated with stars and includes regions of heated gas that make up the Cygnus Loop.
This image was captured in narrowband and processed in the Hubble palette, where red is ionized sulfur, green is hydrogen-alpha and blue is ionized oxygen.
Taken: October 8, 2019
Telescope: Skywatcher Esprit 80 ED Triplet APO Refractor
Mount: Paramount ME II unguided
Camera: ZWO ASI1600MM-Pro (cooled to -15C; unity gain) Bin 1×1.
Focuser: Starizona Micro Touch Autofocuser
Filters used: Hydrogen-alpha, Oxygen-III and Sulphur-II on a ZWO 8 position filter wheel
Exposures: Ha (80×60 sec.), O-III (80×60 sec.) and S-II (52×60 sec.) each for a total exposure time of 3.5 hours; calibrated with 30 dark frames, 32 flat frames with 32 dark-flats
Seeing Conditions:
Processed with PixInsight and Photoshop CC 2019