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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
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M51 (Reprocessed), 





    
        

            KuriousGeorge
M51 (Reprocessed)

M51 (Reprocessed)

Technical card

Resolution: 3760x3772

Dates:March 29, 2019March 30, 2019April 6, 2019April 8, 2019

Frames:
Astrodon 50 mm G: 8x900" -20C bin 1x1
Astrodon 50mm B: 12x900" -20C bin 1x1
Astrodon 50mm L: 32x900" -20C bin 1x1
Astrodon 50mm R: 12x900" -20C bin 1x1

Integration: 16.0 hours

Darks: ~20

Flats: ~80

Flat darks: ~80

Bias: ~20

Avg. Moon age: 12.91 days

Avg. Moon phase: 19.30%

Mean SQM: 21.30

Astrometry.net job: 3101805

RA center: 13h 29' 52"

DEC center: +47° 11' 49"

Pixel scale: 0.468 arcsec/pixel

Orientation: 89.334 degrees

Field radius: 0.346

Locations: KG Observatory, Julian, CA, United States

Data source: Backyard

Description

Reprocessing of my prior image at https://www.astrobin.com/406200/C/ with more attention spent on the noise mask, color saturation, background level and star shrink.

Comments

Author

KuriousGeorge
KuriousGeorge
Like

Revisions

  • M51 (Reprocessed), 





    
        

            KuriousGeorge
    Original
  • M51 (Reprocessed), 





    
        

            KuriousGeorge
    B
  • Final
    M51 (Reprocessed), 





    
        

            KuriousGeorge
    C

B

Fixed a few hot pixels. (-:

C

Cleaned up a few out-of-frame bright star remnants.

Sky plot

Sky plot

Histogram

M51 (Reprocessed), 





    
        

            KuriousGeorge