The beautiful, faint nebulosity you see here was captured with my system at Pixel Skies Astro in Spain over the month of July 2022.
You can see the system
here.
WR 134 is a variable Wolf-Rayet star located about 6,000 light years away from Earth in the constellation of Cygnus. Wolf-Rayet stars are very hot and massive and this one is blowing off its outer layers at very high speeds. Part of this material can be seen as the blue arc and circle surrounding the star which was created when the outer layer collided with the ambient nebula surrounding the star.
Regardless of the violence of this event, the resulting blue glow is very faint indeed and required many hours of exposure to collect and integrate it together so that we can see it. I used H-Alpha and Oxygen III narrowband filters to obtain the nebulosity you see here, and combined an RGB image of the stars onto that. In all a total of 46 hours of exposures were combined together.
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