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Contains:  M 101, M101, NGC 5455, NGC 5457, NGC 5461, NGC 5471, NGC5447, NGC5449, NGC5450, NGC5451, NGC5453, NGC5455, NGC5461, NGC5462, NGC5471, PGC2468609, PGC2469762, PGC2816075, PGC49919, Pinwheel galaxy, SS UMa
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Closeup of Messier 101, The Pinwheel Galaxy, 



    
        

            Madratter
Powered byPixInsight

Closeup of Messier 101, The Pinwheel Galaxy

Technical card


Dates:April 1, 2020April 2, 2020April 9, 2020April 10, 2020

Frames:
Baader Blue 36mm: 20x600" -20C bin 1x1
Baader Green 36mm: 20x600" -20C bin 1x1
Baader Luminance 36mm: 52x600" -20C bin 1x1
Baader Red 36mm: 20x600" -20C bin 1x1

Integration: 18.7 hours

Avg. Moon age: 12.46 days

Avg. Moon phase: 75.29%

Bortle Dark-Sky Scale: 4.00


Astrometry.net job: 3422695

RA center: 14h 3' 12"

DEC center: +54° 23' 34"

Pixel scale: 0.692 arcsec/pixel

Orientation: 0.100 degrees

Field radius: 0.395 degrees


Resolution: 3271x2488

Data source: Backyard

Description

I'm really happy with how my system has been performing recently. This is a reasonably deep image of Messier 101, known visually for its low surface brightness. There are many background galaxies captured in the image, most missed by the PixInsight Annotation.

This galaxy is thought to be around 28 Million light-years distant and some 200,000 light-years in diameter (SkyTools 4). Other estimates place it at as little as 21 Million light-years.

Comments

Author

Madratter
Madratter
License: None (All rights reserved)
2450
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Revisions

  • Closeup of Messier 101, The Pinwheel Galaxy, 



    
        

            Madratter
    Original
  • Final
    Closeup of Messier 101, The Pinwheel Galaxy, 



    
        

            Madratter
    B

B

Description: Lightly sharpened to bring out even more detail.

Sky plot

Sky plot

Histogram

Closeup of Messier 101, The Pinwheel Galaxy, 



    
        

            Madratter