Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  NGC 6960  ·  NGC 6979  ·  The star 49Cyg  ·  The star 52Cyg  ·  Veil Nebula
Western Veil and Pickerings Triangle in RGB, Earle Waghorne
Western Veil and Pickerings Triangle in RGB
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Western Veil and Pickerings Triangle in RGB

Western Veil and Pickerings Triangle in RGB, Earle Waghorne
Western Veil and Pickerings Triangle in RGB
Powered byPixInsight

Western Veil and Pickerings Triangle in RGB

Equipment

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Description

I've spent the last cloudy month working on my wide field rig. Going to an OAG, on the Esprit-80, left my Evoguide 50 with nothing to do and, as I had some unused payload, I attached it to the rings on the tiny Tak (FS-60-CB with 0.72x reducer) added a Skywatcher field flattener and my ZWO 2600, temporarily. Part of the reason for doing this is that much of the time wide field images are false colour and I wanted to have "real" colour images as well.

Finally we got a few hours of clear sky and I started on a two panel mosaic of the Cygnus Loop. Too little time to process images from the monochrome cameras but there was 80 minutes of useful subs from the Evoguide, which I processed, largely to see how the field flattener worked. The processing is minimal. It was stacked in APP, the green background was removed using ABE, and then it was stretched using the histogram Transformation and finished with the Curves Transformation.

The image surprised me. Most images of the Cygnus Loop and its components show the strong Ha and OIII (and SII) emissions against a dark background but the RGB shows both the density of the star field and the huge cloud of interstellar dust outside of the Western Veil and Pickering's Triangle. The Cygnus Loop is around 130 light years in diameter, so that the dust cloud must be around 100 light years long.

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Western Veil and Pickerings Triangle in RGB, Earle Waghorne