Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  41 Ori A)  ·  41 Ori C  ·  41 Ori D  ·  42 Ori)  ·  43 Ori)  ·  44 Ori)  ·  Great Orion Nebula  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  Orion Nebula  ·  The star 45 Ori  ·  The star Hatysa (ι Ori  ·  The star Mizan Batil I (c Ori  ·  The star Mizan Batil II (θ2 Ori  ·  The star Trapezium (θ1 Ori A  ·  The star θ1 Ori C  ·  The star θ1 Ori D  ·  Upper Sword  ·  the Running Man Nebula
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Nah, it'll be fine - M42 Speedrun in 34 min. 40s. - SHO-RGB single subs, no stacking., Herbert_West
Nah, it'll be fine - M42 Speedrun in 34 min. 40s. - SHO-RGB single subs, no stacking.
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Nah, it'll be fine - M42 Speedrun in 34 min. 40s. - SHO-RGB single subs, no stacking.

Getting plate-solving status, please wait...
Nah, it'll be fine - M42 Speedrun in 34 min. 40s. - SHO-RGB single subs, no stacking., Herbert_West
Nah, it'll be fine - M42 Speedrun in 34 min. 40s. - SHO-RGB single subs, no stacking.
Powered byPixInsight

Nah, it'll be fine - M42 Speedrun in 34 min. 40s. - SHO-RGB single subs, no stacking.

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Description

What's the most powerful technique we've got? Stacking, of course. So, I had a go at M42 without it, in crappy conditions, with ~20% Cirrus.

I originally planned to take three, single 10 min. Ha, SII and OIII subs and wrap this up in 30 minutes. But we can't have the Trapezium blown out, so I was forced to spend two whole minutes to take one 60s. Ha and one 60 s. OIII sub. And since the hole in low clouds turned out to be bigger than anticipated, I was able to gather a staggering 180 s. of RGB combined for the stars!

Funnily enough, the most difficult part was kludging those three SHO subs to get some kind of inoffensive color combination :-) It's a Frankenstein monster of straight HOO with SII bolted on top and a lot of tweaking in Photoshop.

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Nah, it'll be fine - M42 Speedrun in 34 min. 40s. - SHO-RGB single subs, no stacking., Herbert_West

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