M74 Face On Spiral Galaxy (Joe Petrick)

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

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M74 Face On Spiral Galaxy

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M74 Face On Spiral Galaxy

. Attached is an image I took 12/19/23 of Face on Spiral Galaxy M 74. It's a total of six hours of exposure. Taken over two separate nights. M 74 has a large number of H II regions that appear as a very bright red knots in the spiral arms of this image. I enhanced those H II regions by blending in one hour of hydrogen alpha data into the red channel. There are also a lot of background galaxies in this image. M74 lies approximately 35 million ly from Earth. M 74 is a very nice example of a Face on Galaxy that does not have a barred nucleus (SA). In September 1870 Pierre Méchain discovered M 74 and he reported to his friend Charles Messier who then added it to his catalog. M 74 has a very low surface brightness so it is difficult to see it spiral arms through a telescope unless you are in extremely clear skies. It shines at magnitude 9.4 and so far there've been three supernovas discovered in M 74.

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Status	Advanced success
Started	...
Astrometry.net job	9707626
PixInsight job	598HBJXDHCMAWYBS7DNEKICZWO0AAANH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h36m41s.202
RA (top/left)	01h37m32s.323
RA (top/right)	01h36m07s.527
RA (bottom/right)	01h35m50s.147
RA (bottom/left)	01h37m14s.855

Dec (center)	+15°47′20″.94
Dec (top/left)	+15°52′16″.19
Dec (top/right)	+15°57′49″.13
Dec (bottom/right)	+15°42′24″.64
Dec (bottom/left)	+15°36′52″.29

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M74 Face On Spiral Galaxy

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