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Contains:  Great Cluster in Hercules, M 13, NGC 6205
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Messier 13 - Globular Cluster, 


            Mike Oates
Messier 13 - Globular Cluster
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Messier 13 - Globular Cluster

Technical card

Dates:May 20, 2018

Blue: 12x120" bin 1x1
Blue: 30x60" bin 1x1
CLS CCD: 40x180" bin 1x1
Green: 12x180" bin 1x1
Green: 28x60" bin 1x1
Astrodon L-NIR: 6x180" bin 1x1
Astrodon L-NIR: 2x300" bin 1x1
Red: 11x180" bin 1x1
Red: 32x60" bin 1x1

Integration: 5.5 hours

Avg. Moon age: 5.60 days

Avg. Moon phase: 31.52%

Mean SQM: 18.50

Basic astrometry details job: 2080415

RA center: 16h 41' 41"

DEC center: +36° 26' 9"

Pixel scale: 0.718 arcsec/pixel

Orientation: 359.918 degrees

Field radius: 0.386 degrees

Resolution: 2606x2865

Locations: The Hills Observatory, Manchester, United Kingdom

Data source: Backyard


The Luminance was made by integrating all the subs together. I also included the NIR subs with the red during integration.

Astronomik CLS CCD filter used as the Lum. This filter allows me to take exposures up to three times longer than the Lum filter that comes in the Astrodon LRGB filter set.

Revision B is a crop showing a 0.5 x 0.5 degree field. I have done this to make it easier to compare other images of Globular Clusters that I am imaging.



Mike Oates
License: None (All rights reserved)


  • Messier 13 - Globular Cluster, 


            Mike Oates
  • Final
    Messier 13 - Globular Cluster, 


            Mike Oates


Description: Crop to show 0.5 x 0.5 degree field.

Sky plot

Sky plot


Messier 13 - Globular Cluster, 


            Mike Oates