Cygnus veil complex - 642 60 secs unguided subs taken on the nights of 20 and 22nd June 2022 (Stefano Ciapetti)

Cygnus veil complex - 642 60 secs unguided subs taken on the nights of 20 and 22nd June 2022

This image is the sum 642 60 secs unguided subs taken during the nights of the 20th and 22nd June 2022. Setup was Canon 70-200 F4 lens, ASI533 camera, Optolong l-extreme filter. All on top of a Smart Eq Ioptron mount.
This image has been the first of this setup taken during this nebula season. The frames taken on the 20th were slightely out of focus. This is the reason for some triangle shape stars. I have combined both 20th (out of focus) and 22nd (perfect) frames in order to gather more signal.
Aquisition, stacking and processing (gradient removlal, deconvultion - to reduce triangle shape stars, low pass filter) with Astroart.
This is also the first image where I have been able to use, in the same night, both this and main setup (Ioptron CEM60EC + Orion 250 + qhy268M) controlled by one single industrial pc. Later I will post pictures. However some troubles happened on images collected on main setup on the night of the 22nd. I have to investigate.

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of explosion, the supernova would have appeared brighter than Venus in the sky, and visible in daytime. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon). While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements. (The distance estimates affect also the estimates of size and age.) (Wikipedia)

Short exposures DSO
Imagers of Italy
ASI533MC Pro
Suburban Astrophotography
Camera Lens Astrophotography

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Deep sky
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Extremely wide field
Star trails
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Noctilucent clouds
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Backyard
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Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
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Unknown

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Status	Advanced success
Started	...
Astrometry.net job	5906927
PixInsight job	0ZYO814LVC63YXVLNFKT26AQATBJDNOT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h50m49s.18
RA (top/left)	20h43m33s.39
RA (top/right)	20h57m19s.30
RA (bottom/right)	20h57m50s.90
RA (bottom/left)	20h44m30s.94

Dec (center)	+30°53′11″.6
Dec (top/left)	+32°15′35″.8
Dec (top/right)	+32°25′16″.8
Dec (bottom/right)	+29°29′16″.7
Dec (bottom/left)	+29°19′43″.9

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