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Contains:  M 3, NGC 5272
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M3 Globular Cluster, 


            Andrew Barton
M3 Globular Cluster

M3 Globular Cluster

Technical card

Resolution: 4096x4096 job: 2658651

RA center: 205.551 degrees

DEC center: 28.378 degrees

Pixel scale: 0.326 arcsec/pixel

Orientation: 320.898 degrees

Field radius: 0.262 degrees

Data source: Mix of multiple source


The data for this image comes from multiple sources. The luminance data is from the University of Arizona Schulman Telescope on Mt. Lemmon. I didn't have enough time to get the color data I wanted, so I took that from my backyard using my C8 Edge at F7.

This was my first attempt at mixing data from multiple sources. I am happy with this result and will be trying this experiment again later.

This image is made from 36, 120 second Lum exposures on the Schulman 0.8 meter telescope and 160 x 120 second images taken through R, G and B astrodon filters on my Celestron Edge 8" with the F7 focal reducer. The imaging camera was the ASI 1600 Mono Pro.



Andrew Barton
License: Attribution Creative Commons

Sky plot

Sky plot


M3 Globular Cluster, 


            Andrew Barton

In these public groups

Arizona Astrophotographers