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Technical card

Resolution: 3240x2436

Dates: March 20, 2014

Frames: 226x330"

Integration: 20.7 hours

Avg. Moon age: 17.95 days

Avg. Moon phase: 88.98%

Astrometry.net job: 206984

RA center: 148.904 degrees

DEC center: 69.066 degrees

Pixel scale: 0.925 arcsec/pixel

Orientation: 178.825 degrees

Field radius: 0.521 degrees

Locations: Heimsternwarte, Markgrafneusiedl, Austria

Description

M81 captured from February - March 2014. Includes also some luminance images from 2013.
Image processing was done in PixInsight only.

L: 157 x 300s
R: 17 x 400s
G: 18 x 400s
B: 34 x 400s

Binning was 1x1 this time.

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skyimages
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M81, skyimages