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Contains:  Great Cluster in Hercules, Hercules globular cluster, M 13, M13, NGC 6205
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M13 in Hercules, 


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M13 in Hercules

Technical card

Imaging telescopes or lenses:Celestron C11

Imaging cameras:QHYCCD QHY9M

Mounts:Skywatcher NEQ6 PRO Synscan

Guiding telescopes or lenses:Skywatcher 9x50 finderscope

Guiding cameras:QHYCCD QHY5L-IIc

Focal reducers:Antares Reducer f/6.3


Filters:Baader Green 2"Baader Blue 2"Baader Red 2"Baader L 2''

Accessory:QHYCCD QHY 2" Filter wheel

Dates:March 11, 2015

Baader Blue 2": 10x60" -20C bin 1x1
Baader Green 2": 10x60" -20C bin 1x1
Baader L 2'': 39x120" -20C bin 1x1
Baader Red 2": 10x60" -20C bin 1x1

Integration: 1.8 hours

Flats: ~10

Bias: ~50

Avg. Moon age: 19.98 days

Avg. Moon phase: 72.27% job: 568597

RA center: 16h 41' 40"

DEC center: +36° 27' 2"

Pixel scale: 0.498 arcsec/pixel

Orientation: -47.946 degrees

Field radius: 0.274 degrees

Resolution: 3186x2356

Locations: Puolivälinkangas - Oulu, Oulu, Finland

Data source: Backyard


Finally a week of clear skies, the first proper one after last October. I dusted off my Celeron, and rusty that I was, got some usable subs of 2-3 minute range.



License: None (All rights reserved)

Sky plot

Sky plot


M13 in Hercules,