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Old 24-01-2020, 06:52 PM
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DiscoDuck (Paul)
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Another Crab - A Messier One

Forgive the pun in the title

Crab with about 7 hours of Ha, 3 of OIII and 1.5 of RGB. Needs a lot more RGB and OIII. And perhaps could try some sulphur?? But may not get more data this season as I'm a bit tired of imaging it!

Seeing was poor - probably of course mainly due to the altitude. It only just cleared my trees and streetlights - the latter rendering any luminance I took unusable. But I'd imagine the smoke from Kangaroo Island didn't help!

The processing is a messy combination of a pure HOO version merged with an HOO-enhanced RGB version. Pure Frankenstein! I need to understand how to use H and O with RGB better

Astrobin version here.

Comments and advice welcome as always.

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Last edited by DiscoDuck; 24-01-2020 at 07:43 PM.
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Old 24-01-2020, 10:36 PM
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strongmanmike (Michael)
Woohoo it's clear

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Very cool image and considering it only reaches 30deg max elevation from Adelaide that's a fine job Paul Plenty of structure and colour visible.

I recall I imaged this baby once through my old 12" Meade SCT way back in 2003 with my first little CCD camera - a simple mono stack but that's it...and even though it was crappy, I was thrilled with the result, such a cool object

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Old 25-01-2020, 09:13 AM
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Atmos (Colin)
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It’s coming up really nice Paul! It’s difficult doing some of these Messier objects as they don’t get overly high. That’ll definitely put a limit on the detail you can get.
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Old 25-01-2020, 09:28 AM
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Very nice Paul despite smoke and low elevation

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Old 25-01-2020, 10:12 AM
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DiscoDuck (Paul)
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Thanks Mike, Colin and Mick.
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