NGC 6960 (Joe Matthews)

NGC 6960

Finally a clear night that wasn't supposed to be. I was lucking to catch a few hours last night 2023/09/13 and just about 15 min into the new day of 2023/09/14. Initially I was going to try and get a few hours on the Iris Nebula, but thought I still have my Optolong L-Ultimate in the filter drawer why not go for the Veil Nebula, and this would be my second attempt at NGC 6960 this year. By 00:15 on 2023/09/14 the clouds rolled in and I called it a night.

NGC 6960 is the western segment of the Great Cygnus Loop, the remnants of a supernova explosion estimated to have occurred 5,000 to 8,000 years ago. There are few directly visible supernova remnants but the Veil is one of the finest.

William Herschel discovered the complex in 1784 with his 18-inch reflector telescope. He described the western end of the nebula as "Extended; passes thro' 52 Cygni... near 2 degree in length."NGC 6960 is sometimes called the Network Nebula and NGC 6962-95 the Filamentary Nebula; but often the terms are switched, or refer to both as a whole. The entire complex has three popular names: the Cirrus Nebula, the Bridal Veil Nebula, or simply the Veil Nebula. The last is now the most commonly used name. All these titles refer to the nebula's wispy streaks and elegant lace-like filamentary structure.The nebula is notoriously difficult to see visually, even though it has a bright integrated magnitude of 7. However, a telescope using an OIII filter (a filter isolating the wavelength of light from doubly ionized oxygen), will allow an observer to see the nebula clearly, as almost all light from this nebula is emitted at this wavelength.The distance to the nebula is not precisely known, with estimates ranging from 1,400 to 2,600 light-years.

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Title: NGC 6960 - Drizzled version

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Status	Advanced success
Started	...
Astrometry.net job	8455673
PixInsight job	YV0VXJDE6SBSP88GUG5YQXMT2YIOHAHE
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h45m44s.60
RA (top/left)	20h40m23s.81
RA (top/right)	20h41m27s.78
RA (bottom/right)	20h50m55s.28
RA (bottom/left)	20h50m11s.49

Dec (center)	+30°40′10″.3
Dec (top/left)	+32°08′27″.4
Dec (top/right)	+29°03′12″.1
Dec (bottom/right)	+29°10′55″.8
Dec (bottom/left)	+32°16′28″.9

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