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Old 10-04-2019, 09:00 PM
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DiscoDuck (Paul)
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Dark sky luminance

Had a few nights away in the Flinders Ranges in SA and clear skies allowed for a few objects. Some still to process. But attached are two images with only luminance taken at the dark sky site and colourised with data from previous images I've taken in the suburbs of Adelaide.

Trifid is about 2.3 hours of luminance (and 10 hours of colour from a suburban OSC image).

Corona Australis is about 5.5 hours luminance (and 2.25 hours of RGB data from the 'burbs).

The idea was to try to improve the previous suburban images with more detail in the Trifid (using a ZWO ASI 1600 now instead of a QHY8) and less noise in the dust lanes in Corona Australis due to the dark sky. But the seeing could've been a bit better though to get more detail I think.

Scope is an RC8 on a Mach1 mount (new and now superceded already!! ).

Comments welcome. Full res available on Astrobin here and here.
Attached Thumbnails
Click for full-size image (Trifid.jpg)
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Click for full-size image (CoronaAustralis.jpg)
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Old 10-04-2019, 10:16 PM
Kilanya
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Beautiful!!
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Old 11-04-2019, 11:50 AM
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strongmanmike (Michael)
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Two lovely captures there Paul, time well spent ...trip to the Flinders Ranges huh?...niiiice

Mike
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Old 11-04-2019, 01:46 PM
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Both are superb images. Love em.

Greg.
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Old 11-04-2019, 06:23 PM
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DiscoDuck (Paul)
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Thank you Sarah, Mike and Greg!
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Old 12-04-2019, 08:24 AM
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Stonius (Markus)
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Excellent result!

Beautiful star colours too!
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Old 12-04-2019, 01:48 PM
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My God it's full of stars

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Nicely done - two fine images there
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Old 12-04-2019, 01:56 PM
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Stonius (Markus)
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How do you get such fine star colours while preserving the nebulosity? Do you do a separate pass for star colours?

Cheers

Markus
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Old 12-04-2019, 04:25 PM
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multiweb (Marc)
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Wow! Two beautiful shots! Straight to the poolroom.
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Old 12-04-2019, 06:04 PM
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DiscoDuck (Paul)
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Quote:
Originally Posted by Stonius View Post
Excellent result!

Beautiful star colours too!
Thanks Markus.

Quote:
Originally Posted by Andy01 View Post
Nicely done - two fine images there
Thanks Andy.

Quote:
Originally Posted by Stonius View Post
How do you get such fine star colours while preserving the nebulosity? Do you do a separate pass for star colours?
Umm. No, I didn't do anything special. Not sure.

Quote:
Originally Posted by multiweb View Post
Wow! Two beautiful shots! Straight to the poolroom.
Thanks Marc.
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