IC 1340: The Veil Nebula (Patrick Graham)

IC 1340: The Veil Nebula

Revision title: IC 1340 Cygnus Loop

Here, presented for your viewing pleasure, is one of my takes on the Veil Nebula. According to Wikipedia, this supernova remanent is 2400 light years distant and is the remains of a star, -20 times the mass of our sun- that went supernova about 10,000 to 20000 years ago. It was estimated to be so bright as to outshine Venus and also readily visible in daylight. This image was a first light series of exposures through my new William Optics Redcat 71 Petzval astrograph refractor. This nebula is rich in Ha and O-III emission lines which my Optolong L-eNhance filter captured nicely. I say one of my takes because I was experimenting with different star reduction processes and iterations of which I found Bill Blanchan's to be the most comprehensive and easiest to use. Thank you, Bill and you too, Michael F. for suggesting these tools. On some of the other final images, I found that I was hitting the stars too hard and they seemed too crisp and artificial. I settled on this one because it seemed to give the right balance between reducing the preponderance of stars in the band of the Milky Way and bringing out the detail in the nebulosity while preserving some of the "star glow" and softness that give them that radiating effect. In addition, the starless image produced really allowed the detail of the nebula to stand out; so I am posting that image as well. The combination of this scope, my ZWO ASiI2400MC-Pro and ZWO AM-5 mount is ideal for wide field imaging.

There you have it. Please enjoy and, as always, comments, criticisms and suggestions are not only welcomed but encouraged. Thanks for stopping by and having a look.

Clear skies to all,

Patrick

Original
Final
C

C

Title: IC 1340 Cygnus Loop

Description: The original was too flat in my opinion so I've brought out a little more Ha to make it jump.

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Status	Advanced success
Started	...
Astrometry.net job	8143594
PixInsight job	4Q4JCIH0G6TXK50PXN7YMQOUVU5DQGEA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h51m59s.37
RA (top/left)	20h58m36s.46
RA (top/right)	21h01m28s.87
RA (bottom/right)	20h44m56s.94
RA (bottom/left)	20h43m01s.27

Dec (center)	+30°53′03″.8
Dec (top/left)	+27°53′53″.2
Dec (top/right)	+33°31′28″.10
Dec (bottom/right)	+33°50′59″.3
Dec (bottom/left)	+28°12′22″.0

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