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Contains:  M 108, NGC 3448, NGC 3556, NGC 3642, The star 43UMa, The star 44UMa, The star Merak (βUMa)
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M 97 & M 108 Widefield [200mm], 


M 97 & M 108 Widefield [200mm]
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M 97 & M 108 Widefield [200mm]

Technical card

Dates:Dec. 18, 2017

Frames: 18x105" ISO800

Integration: 0.5 hours

Darks: ~10

Bias: ~20

Avg. Moon age: 0.19 days

Avg. Moon phase: 0.04%

Basic astrometry details job: 3256817

RA center: 11h 10' 54"

DEC center: +56° 13' 44"

Pixel scale: 4.554 arcsec/pixel

Orientation: 32.104 degrees

Field radius: 3.644 degrees

Resolution: 4792x3196

Locations: Balkon, Dresden, Sachsen, Germany

Data source: Backyard


After a long time of bad weather conditions there was a short period without clouds. Something was wrong with the polar alignment, so only 18 images were processed.



License: None (All rights reserved)

Sky plot

Sky plot


M 97 & M 108 Widefield [200mm],