M74 - The Phantom Galaxy (Kurt Zeppetello)

Celestial hemisphere: Northern · Constellation: Pisces (Psc) · Contains: M 74 · NGC 628

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M74 - The Phantom Galaxy

Link: http://astroquest1.blogspot.com/

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M74 - The Phantom Galaxy

Link: http://astroquest1.blogspot.com/

M74 (a.k.a. NGC 628 or the Phantom Galaxy) is a beautiful face-on spiral galaxy in Pisces is located about 32 million light-years away. At about 100 billion stars and 95,000 light-years across it is slightly less than the size of our own galaxy. The spiral arms of are particularly well developed and contain clusters of young blue stars and many star-forming nebulae.

This image is infinitely better than my previous from three years ago where half of the spiral arms were missing but it would have been better had all of the exposures been used. As it turned out the 2.5 hrs of luminosity was either not focused well or the the sky conditions were not as good as they appeared or both, in any case I did not use it. As a result processing was even more creative than normal. The R, G, B was great so I kept that and made a synthetic luminosity layer in PI and did a 50% combination with it. I then did a 20% combination of Ha into the red channel in order to enhance the Ha regions in the outer spiral arms.

I did not get all the detail I had hoped for but am happy with what I did get all things considered. The stars were colorful as was the galaxy .

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Status	Advanced success
Started	...
Astrometry.net job	3054406
PixInsight job	MWN8Z8WP8KVUH8OH8SZWAUTLQRRTLVXQ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h36m39s.25
RA (top/left)	01h38m11s.34
RA (top/right)	01h35m08s.75
RA (bottom/right)	01h35m07s.42
RA (bottom/left)	01h38m09s.47

Dec (center)	+15°46′41″.1
Dec (top/left)	+16°02′51″.3
Dec (top/right)	+16°03′22″.5
Dec (bottom/right)	+15°30′28″.3
Dec (bottom/left)	+15°29′57″.4

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M74 - The Phantom Galaxy

M74 - The Phantom Galaxy

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M74 - The Phantom Galaxy

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