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M97, The Owl Nebula - an LHOO recipe

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Here's my image of M97, The Owl Nebula, using a Lum, Ha and OIII combination processed as LRGB (LHOO).

I captured the data over the weekends of 20th April (21x600s Ha, 18x600s OIII) and 10th May (31x600s Lum) totalling approx. 11.5 hours of exposure. Image scale 0.69arcsec/pixel using a 150mm refractor. If I push the image I can see that I've captured a faint outline of the larger, outer shell, so I may return to get some longer exposures on the other side of summer.

CS, Andy


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