Contains: NGC 3077, M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031, NGC 2976
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IFN around M81 & M82

Technical card

Imaging telescope or lens: Samyang 135mm f/2 ED UMC

Imaging camera: ZWO ASI174MM

Mount: Sky-Watcher HEQ5 PRO

Guiding telescope or lens: Skywatcher ST80

Guiding camera: ZWO ASI034MC

Software: Deep Sky StackerGIMP 2.9PHD2 Guiding

Resolution: 1920x1200

Dates: Feb. 18, 2017

Frames: 360x60" (gain: 180.00)

Integration: 6.0 hours

Darks: ~32

Flats: ~32

Flat darks: ~32

Avg. Moon age: 21.86 days

Avg. Moon phase: 53.03%

Bortle Dark-Sky Scale: 4.00

Temperature: 7.00

Astrometry.net job: 1462781

RA center: 148.279 degrees

DEC center: 69.578 degrees

Pixel scale: 9.372 arcsec/pixel

Orientation: -89.625 degrees

Field radius: 2.947 degrees

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

Comments

Author

Jonathan Edgecombe
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IFN around M81 & M82, Jonathan Edgecombe

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