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Messier M51, 



Technical card

Resolution: 1800x1200

Dates:March 9, 2014

Frames: 48x300" ISO800

Integration: 4.0 hours

Darks: ~20

Flats: ~20

Bias: ~200

Avg. Moon age: 8.23 days

Avg. Moon phase: 58.95%

Bortle Dark-Sky Scale: 6.00

Mean SQM: 4.00

Mean FWHM: 4.00 job: 267438

Locations: Nuremberg, Germany, Nuremberg, Bavaria, Germany


...the Whirlpool Galaxy. Shot with my 200mm Newton and developed with only 4 hours raw data. The raw data were very unruly due to passing clouds. Everything was brightened by a yellow, mustard-colored soup. With PixInsight and 20 hours processing time I was able to highlight this beautiful Galaxy. Unfortunately, the tail does not come out completely, only 4 hours with my DSLR are too little.

Shooting Data:
Newton NK900 1040mm/f5.2
Paracorr Komakorrektor
Canon 600Da
Exposure Time: 4h a' 5min. (20 Flats, 20 Darks, 200 BIAS)
EBV: Pixinsight, final steps in Photoshop



License: None (All rights reserved)


Messier M51,