I've reprocessed some older images of the Propeller nebula. One uses my data from Winter 2024 which I originally processed using HaRGB. I've excluded the Ha which has resulted in a better image, I think. I used a synthetic luminance, extracted from the RGB data as I didn't take any luminance at the time. I like the result.
Click on an image to get a closer view
The propeller nebula
The next version was supplied on Stargazers lounge using SHO data. I reprocessed it using the modern Pixinsight processes, in particular Narrowband normalisation which enabled me to control the green in the final image.
Anne Startup
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