M104 - The Sombrero Galaxy - Crop (Kurt Zeppetello)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: M 104 · NGC 4594 · Sombrero galaxy

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M104 - The Sombrero Galaxy - Crop

Link: http://kurt-zeppetello.blogspot.com/2017/05/m104.html

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M104 - The Sombrero Galaxy - Crop

Link: http://kurt-zeppetello.blogspot.com/2017/05/m104.html

I never know how to present images. Some are better close up, some are better wide field, and then some can go either way. To me this is one such image....

My crop is not super-cropped like some others but it is the limit with my little ED80.

Well the Sombrero Galaxy (M104 or NGC 4594) was the last image to be processed from images I took over two weeks ago. Clouds and the moon have temporally put my deep sky imaging on hold.

Sombrero Galaxy is an spiral galaxy in the constellation Virgo located 31 million light-years from Earth. Smaller than the Milky Way, M104 has a diameter of approximately 50,000 light-years and has a bright nucleus. A prominent dark dust lane and a central bulge give this galaxy the appearance of a sombrero.

I am really liking the Synthetic Flat-Layer gradient removal method described by Trevor Jones from AstroBackyard to cleanup the gradients. Since I do not use flats yet, my stacked image is loaded with vignetting and gradients. I used to spend an enormous amount of time trying to make a decent image, however, this new method described by Trevor has cut my time in half and produces better results. Of course using flats will make a world of difference as well but I have not been able to do it properly yet. I need to see a video of somebody actually doing it in the field.

This represents number 76 on my catalog of Messier objects, only 34 remain.

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Status	Advanced success
Started	...
Astrometry.net job	1576074
PixInsight job	WV1JKDPUMRFBHA18OLNPGZ5K4BMXSY7K
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h39m58s.56
RA (top/left)	12h42m03s.11
RA (top/right)	12h37m58s.96
RA (bottom/right)	12h37m53s.74
RA (bottom/left)	12h41m58s.43

Dec (center)	-11°37′24″.6
Dec (top/left)	-11°18′25″.7
Dec (top/right)	-11°16′37″.9
Dec (bottom/right)	-11°56′19″.10
Dec (bottom/left)	-11°58′08″.2

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M104 - The Sombrero Galaxy - Crop

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M104 - The Sombrero Galaxy - Crop

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