The Dumbell Nebula, also known as the Apple Core Nebula, is an emission nebula located in the constellation Vulpecula. It is approximately 1360 light-years away with a diameter of approximately 2.88 light-years. There is some color shift in the central nebula region. It should be more of a uniform teal color similar to the outer edges based on its emission spectra rather than blue. I have tried multiple raw converters with similar color shift results.

This image was made with a Nikon Z7 II and a Nikon 600mm f/6.3 lens and a 1.4x teleconverter for a total focal length of 840mm at f/9. A total of 120 30-second exposures at ISO 6400 were made for a total of 60 minutes exposure time. Star tracking was done with a Fornax LighTack II. Aligned images from Deep Sky Stacker were stacked and stretched using Python coded algorithms. Some final image processing was done with Topaz DeNoise AI and Capture One.