Cygnus Wall in NGC7000

With COVID-19 restrictions easing here a group of Halifax Centre members and I made the trip to the centre's dark sky observatory SCO. The conditions were so so, but much better than my urban driveway, plus it was my first chance to connect, in person, with several friends in three long months.

This is an unfiltered RGB shot of the Cygnus Wall area of the North America Nebula, the area exhibits some of the densest areas of star formation in the NGC7000 complex, according to Wikipedia. For a much wider view of the entire nebula have a look at a mosaic I shot a few years ago form our cottage in Marion Bridge, Nova Scotia. For this image I tried to resist the temptation to pull out the faintest tendrils of glowing gas in favour of more detail and colour in the nebula. This is one of those targets that is very easy to turn into monochrome red so it took a bit of work to keep the blue of the H-beta emission.

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Object Cygnus Wall centered on  RA 20:59:53, Dec+43:28:21
Date 18 June, 2020
Exposure 85 minutes (17 X 5 minutes)
Conditions Bortle 4 skies. SCO typically has Bortle 3 skies and occasionally Bortle 2, but a high haze and very poor seeing reduced the transparency quite a bit.
ISO 800
Camera Canon 60Da DSLR
Optics Prime focus of a  SkyWatcher Esprit 120 f/7 APO refractor with a focal length of 840 mm
Location St. Croix, Nova Scotia
Processing This image was captured using Sequence Generator Pro, telescope control provided by Mosaic Engine and processed entirely in Images Plus. Starless mask used with an arcsinh stretch,  feature mask used to split the image into nebula and star layers, contrast boosted using multi-scale decomposition then masked noise reduction and deconvolution applied to the nebula layer. Star layer combined and the image cropped then binned. Finally  a slight contrast boost was added to the image to brighten it a bit.