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M31 Globular Clusters G1 and G2

Technical card

Resolution: 1819x1242

Dates: July 10, 2016

Frames: 12x120" ISO800

Integration: 0.4 hours

Darks: ~5

Avg. Moon age: 6.00 days

Avg. Moon phase: 35.54%

Bortle Dark-Sky Scale: 4.00

Temperature: 18.00 job: 1154804

RA center: 8.257 degrees

DEC center: 39.548 degrees

Pixel scale: 1.275 arcsec/pixel

Orientation: -170.625 degrees

Field radius: 0.390 degrees

Locations: Cherry Grove, Kenyon, Minnesota, United States


Obviously this focal length isn't the best for these tiny globulars, but I'm trying to image many globs with the same setup to help comparisons. If anyone is interested, I can post an image of M31 with all the Astronomical League Globular Cluster Program items marked.



Dave Venne

Sky plot

Sky plot


M31 Globular Clusters G1 and G2, 


        Dave Venne