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Contains:  M 74, NGC 628
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Spiral galaxy, M74 ( NGC 628), 



    
        

            Steven Bellavia
Spiral galaxy, M74 ( NGC 628)
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Spiral galaxy, M74 ( NGC 628)

Technical card


Dates:Nov. 8, 2015

Frames: 42x90" ISO1600

Integration: 1.1 hours

Darks: ~10

Avg. Moon age: 26.61 days

Avg. Moon phase: 9.38%

Bortle Dark-Sky Scale: 4.00


Basic astrometry details

Astrometry.net job: 1938679

RA center: 1h 36' 41"

DEC center: +15° 46' 22"

Pixel scale: 1.461 arcsec/pixel

Orientation: 357.770 degrees

Field radius: 0.591 degrees


Resolution: 2424x1616

Data source: Backyard

Description

M74, (NGC 628), is a face-on spiral galaxy in the constellation Pisces. It is at a distance of about 32 million light-years away from Earth. The galaxy contains
two clearly defined spiral arms and is therefore used as an archetypal example of a grand design spiral galaxy. The galaxy's low surface brightness makes it the
most difficult Messier object for amateur astronomers to observe. However, the relatively large angular size of the galaxy and the galaxy's face-on orientation
make it an ideal object for professional astronomers who want to study spiral arm structure and spiral density waves. It is estimated that M74 is home to about
100 billion stars

Comments

Author

bellavia
Steven Bellavia
License: None (All rights reserved)
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Spiral galaxy, M74 ( NGC 628), 



    
        

            Steven Bellavia