Contains: NGC 5477, NGC 5474, NGC 5473, M 101, NGC 5457, NGC 5422
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M101

Technical card

Imaging telescope or lens: Astro-Tech AT65EDQ

Imaging camera: ZWO ASI174MM

Mount: Sky-Watcher HEQ5 PRO

Guiding telescope or lens: Skywatcher ST80

Guiding camera: ZWO ASI034MC

Focal reducer: Tele Vue NPR-1073 0.8x Reducer

Software: Deep Sky StackerGIMP 2.9PHD2 Guiding

Filters: ZWO L 1.25"ZWO B 1.25"ZWO G 1.25"ZWO R 1.25"

Resolution: 1920x1200

Dates: Feb. 23, 2017

Frames:
ZWO B 1.25": 4x300" (gain: 180.00)
ZWO G 1.25": 4x300" (gain: 180.00)
ZWO L 1.25": 27x300" (gain: 180.00)
ZWO R 1.25": 4x300" (gain: 180.00)

Integration: 3.3 hours

Darks: ~12

Flats: ~32

Avg. Moon age: 26.40 days

Avg. Moon phase: 10.66%

Bortle Dark-Sky Scale: 4.00

Temperature: 5.00

Astrometry.net job: 1469745

RA center: 210.790 degrees

DEC center: 54.336 degrees

Pixel scale: 3.527 arcsec/pixel

Orientation: -93.193 degrees

Field radius: 1.109 degrees

Locations: Home, Stanford in the Vale, Oxfordshire, United Kingdom

Comments

Author

Jonathan Edgecombe
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M101, Jonathan Edgecombe