Contains: NGC 6207, M 13, Great Cluster in Hercules, NGC 6205, IC 4615
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M13 first light with SV80ST

Technical card

Resolution: 2915x2080

Dates: July 16, 2017

Frames: 140x30"

Integration: 1.2 hours

Avg. Moon age: 21.83 days

Avg. Moon phase: 53.38%

Astrometry.net job: 1654354

RA center: 250.374 degrees

DEC center: 36.435 degrees

Pixel scale: 1.973 arcsec/pixel

Orientation: 111.934 degrees

Field radius: 0.981 degrees

Description

Short color image of M13 with my new SV80ST and corretor with added 2 mm spacing.

Image is noisy due to short exposure time. No guiding - 30 second exposures

Was taken testing the SV flattener . I had to add 2 mm extra spacing to get decent stars. Spacing is about 56.3mm rather than the suggested 55 mm.

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Author

Pat Bunn
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M13 first light with  SV80ST, Pat Bunn