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M57 L, Ha, O-III combo with ASI178MM

michael.h.f.wilkinson

By michael.h.f.wilkinson
in Imaging - Deep Sky

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michael.h.f.wilkinson

michael.h.f.wilkinson

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Pretty pleased with my first Ring Nebula in colour. Just 800s of luminance, 510s H-alpha, and 720s O-III, all with the ASI178MM behind the little APM 80mm F/6. Might grab more data tomorrow.

I processed the images in APP, combining L with H-alpha for red, and O-III as green and blue. This doesn't do much for star colours, but at least it does colour the nebula.

Crop with just some amp glow and lack of overlap between channels cropped out:

M57LHOO-lpc-cbg-St.thumb.jpg.82603bd4c8cb96f0e26020b19649f494.jpg

Tighter crop

M57LHOO-lpc-cbg-St-crop.jpg.542dccb0d916385f99a61d8a371635ac.jpg

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