NGC 6992 - Eastern Veil Nebula Supernova Remnant (Andrew)

NGC 6992 - Eastern Veil Nebula Supernova Remnant

NGC 6992 otherwise known as the Eastern Veil Nebula, is an ancient supernova remnant located in the constellation Cygnus.  The progenitor star is believed to have been about 20 solar masses, and went supernova between 10,000 and 20,000 years ago.  Experts believe that from Earth, the sight would have been amazing, a cosmic fireworks show brighter than Venus and visible even during the day for several months.

I decided to image this commonly photographed target as a “test”.  About a month ago, I unknowingly drove over a damaged railroad crossing in my car which was carrying my gear to a friends dark site.  Ever since, I’ve had major issues with star shapes, in a system that had a very nice and flat field prior to the incident, so something got knocked out of alignment.  I brought my scope to a local optician, who confirmed that the optics were indeed aligned.  I found out the culprit was that my tilt plate had come lose, as well as another friend of mine Francesco pointing out that the thumb screw that locks in rotation wasn’t the only thing locking down the focuser, but 3 brass screws spaces evenly around the base of the focuser tube.  Once I properly tightened everything down, I chose this target as a test.

Making a long story short, it seems my equipment is back in working order, and since I was loving the data I was gathering so much I decided to go almost 18hrs deep on this target.   Processing was a whole different story, but the main factor was getting deconvolution just right in each channel to squeeze out as much detail as possible.  I hope you enjoy!, and constructive criticism is most welcome.

Final
Original
B

B

Title: Starless

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	6108815
PixInsight job	JC2WJFQSY6DQ2QDSU543FBD64XLU0441
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h55m59s.999
RA (top/left)	20h58m13s.842
RA (top/right)	20h58m16s.421
RA (bottom/right)	20h53m43s.570
RA (bottom/left)	20h53m45s.101

Dec (center)	+31°22′16″.12
Dec (top/left)	+30°38′19″.18
Dec (top/right)	+32°06′01″.11
Dec (bottom/right)	+32°06′05″.69
Dec (bottom/left)	+30°38′21″.79

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