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Contains:  NGC 7039, North America nebula, NGC 7000, NGC 6997, Pelican nebula, IC 5070, IC 5068, NGC 6914, gamma Cyg nebula, IC 1318, Crescent nebula, NGC 6888, IC 1311, The star 28Cyg, The star 55Cyg, The star 34Cyg, The star 30Cyg, The star 57Cyg, The star νCyg, The star ξCyg, The star 31Cyg, The star Sadr (γCyg), The star Deneb (αCyg), Part of the constellation Cygnus (Cyg)
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Cygnus Region – Wide-Field Mosaic, 


Cygnus Region – Wide-Field Mosaic

Cygnus Region – Wide-Field Mosaic

Technical card

Resolution: 6522x5202

Dates:July 25, 2017

Frames: 108x300"

Integration: 9.0 hours

Avg. Moon age: 2.32 days

Avg. Moon phase: 5.94% job: 1686169

RA center: 308.596 degrees

DEC center: 42.101 degrees

Pixel scale: 7.236 arcsec/pixel

Orientation: -178.796 degrees

Field radius: 8.385 degrees

Locations: Mallorca, Son Macia, Mallorca, Spain


This is the central part of the constellation Cygnus, including Deneb and Sadr as main stars, covering a field of about 13 by 10 degrees. This image focusses on the rich H-alpha nebulosity in this region. In contains some of the famous emission nebulae, e.g. the North America Nebula, the Pelican Nebula, and the Crescent Nebula. However, what I find even more exciting is the sheer mass of nebulosity that covers the whole fields with dramatic ripples and dark lanes.

This is the first light for my new "enforced H-alpha" filter from Baader with a width of 3.5nm, works extremely well with the Samyang 135mm lens and the ATIK 460ex camera - no halos and very clean subs. At the same time it is my first attempt at an larger wide-field mosaic. This image is a 3 x 3 mosaic composed in Pixinsight using the MosaicByCoordinantes and GradientMergeMosaic tools. I was a bit worried about combining this mosaic, but it turned out to be really straight-forward. Apart from this I only used MureDenoise, LocalHistogramEqualization and simple HistogramTransformations - no masks or star magic involved.

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License: None (All rights reserved)

Sky plot

Sky plot


Cygnus Region – Wide-Field Mosaic,