ICEINSPACE
Moon Phase
CURRENT MOON
Waxing Gibbous 73.3%
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13-11-2018, 11:48 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,106
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30 Doradus
A clear night, thin moon, and colour data from last night allowed me to complete this one.
Reasonably happy with the result, which incorporated some of last year's spider season data.
The link is here
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13-11-2018, 12:03 PM
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Registered User
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Join Date: Mar 2015
Location: Melbourne
Posts: 1,495
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Wow! What a fantastic image! Nice detail in the nebulosity, and good processing!
The only thing that drew my eye was that the orange stars seemed a little obtrusive to me - maybe a little too saturated to feel real? Bit it's just a niggle.
Fantastic job!
Markus
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13-11-2018, 12:37 PM
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Ultimate Noob
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Join Date: Aug 2011
Location: Melbourne
Posts: 6,982
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Fantastic spider Peter, lovely the detail and resolution! Something I’ve not been able to do with my tiny 5”
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13-11-2018, 01:34 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,106
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Quote:
Originally Posted by Atmos
Fantastic spider Peter, lovely the detail and resolution! Something I’ve not been able to do with my tiny 5”
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Ta. I recall Al Nagler giving a talk at Sydney Observatory, many, many moons ago.
His take was: objects need the right framing....and there is nothing wrong with a good 5" scope (have a not too shabby 5" myself ) ...you just have to frame the right subject.
Quote:
Originally Posted by Stonius
Wow! What a fantastic image! Nice detail in the nebulosity, and good processing!
The only thing that drew my eye was that the orange stars seemed a little obtrusive to me - maybe a little too saturated to feel real? Bit it's just a niggle.
Fantastic job!
Markus
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Thanks Markus. Yes, I pondered the orange stars.. ...but noticed the Chart32 gurus had come up with the same colour, so figured they were on the money.
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13-11-2018, 02:22 PM
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Registered User
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Join Date: Mar 2015
Location: Melbourne
Posts: 1,495
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Quote:
Originally Posted by Peter Ward
Thanks Markus. Yes, I pondered the orange stars.. ...but noticed the Chart32 gurus had come up with the same colour, so figured they were on the money.
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Hell, what do I know - you're working at a level I can only aspire to. That picture still blows my mind. I can't decide whether it's judicious use of wavelets, aperture, or good seeing - or a combination of all three, but whatever it is, you've certainly hit the magic formula.
I hope you have plans to do something with that image, it would certainly look great on a wall somewhere.
Best
Markus
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13-11-2018, 03:36 PM
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My God it's full of stars
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Join Date: Mar 2012
Location: Melbourne
Posts: 3,256
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Wow! That's bold & beautiful - well done
Surreal looking at the details you have managed to capture - astounding really
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13-11-2018, 05:03 PM
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.....
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Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,966
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Fantastic result Peter. There's a real sense of 3D depth in the image
Best
JA
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13-11-2018, 05:28 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,106
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Quote:
Originally Posted by Stonius
Hell, what do I know - you're working at a level I can only aspire to. That picture still blows my mind. I can't decide whether it's judicious use of wavelets, aperture, or good seeing - or a combination of all three, but whatever it is, you've certainly hit the magic formula.
I hope you have plans to do something with that image, it would certainly look great on a wall somewhere.
Best
Markus
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I take the GIGO (garbage-in-garbage-out) approach to imaging. Without good raw data, you are not going to fix it with heroic image processing.
Alluna's optics are simply remarkable. Zerodur primary with a Strehl of 0.96 and dedicated 4" field corrector. German engineering. Just don't mention the war .
Same with the PMEII. Like an American muscle car, it has the horsepower to simply and accurately put some serious payload where you want it.
I do not use wavelet sharpening on DSO images. In this case the H-alpha data did get a smidge of high pass filtering, but that was it.
While many shy away from the bamboo-under the fingernails PixInsight interface, I do recommend their image registration and stacking. It's brilliant and now use it almost exclusively.
My basic work flow is:
Obtain quality data. Don't kid yourself that any eggy or slightly out of focus data is OK. Delete it and re-shoot.
Obtain matching darks and flats
Calibrate in MaxImCCD, then batch save.
Register and integrate with Pixinsight
Use PI's intensity transforms or Maxim's DDP
Colour combine with MaxIm CCD and save to 16bit .tiff for touch up in Photoshop.
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13-11-2018, 05:46 PM
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Registered User
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Join Date: May 2012
Location: Melbourne Australia
Posts: 461
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Superb resolution and detail
Mark
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13-11-2018, 06:34 PM
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Narrowing the band
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Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
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That's it. That's the one. The fine details in the nebula are superb!
We are yet again devoid of a camera, and passively watching new moon crystal clear windless skies. Your image gives us much vicarious pleasure.
Best,
MnT
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13-11-2018, 06:37 PM
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Senior Citizen
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Join Date: Apr 2008
Location: Bribie Island
Posts: 5,059
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That's got so much detail and colour ...Brilliant
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13-11-2018, 06:39 PM
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ze frogginator
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Join Date: Oct 2007
Location: Sydney
Posts: 22,062
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13-11-2018, 07:15 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,106
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Quote:
Originally Posted by multiweb
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Thanks Marc.
Quote:
Originally Posted by FlashDrive
That's got so much detail and colour ...Brilliant
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Quote:
Originally Posted by Placidus
That's it. That's the one. The fine details in the nebula are superb!
We are yet again devoid of a camera, and passively watching new moon crystal clear windless skies. Your image gives us much vicarious pleasure.
Best,
MnT
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Much appreciated.
Oh dear...hopefully the camera on its return it will be "Fearless FLI!"
I covet your dark crystal skies....Coastal gloop moving in here now...
Quote:
Originally Posted by markas
Superb resolution and detail
Mark
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Quote:
Originally Posted by JA
Fantastic result Peter. There's a real sense of 3D depth in the image
Best
JA
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Quote:
Originally Posted by Andy01
Wow! That's bold & beautiful - well done
Surreal looking at the details you have managed to capture - astounding really
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Thanks Guys. While being an "urban imager" has its challenges, you can still occasionally hit a boundary.
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13-11-2018, 08:43 PM
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Registered User
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Join Date: Mar 2015
Location: Melbourne
Posts: 1,495
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Thanks for the rundown. That's very informative. Interesting you prefer calibration in MaxImCCD. Convenience? Or does it do a better job?
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13-11-2018, 08:56 PM
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Registered User
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Join Date: Jan 2012
Location: Melbourne
Posts: 3,610
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Hi Peter,
that's so sharp and clear - it's amazing.
cheers
Allan
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13-11-2018, 10:12 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,106
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Quote:
Originally Posted by alpal
Hi Peter,
that's so sharp and clear - it's amazing.
cheers
Allan
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Thank you indeed.
Quote:
Originally Posted by Stonius
Thanks for the rundown. That's very informative. Interesting you prefer calibration in MaxImCCD. Convenience? Or does it do a better job?
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Well, one can only take so much bamboo. . Suffice to say I’m very familiar with MaxIm. PI may well do a better job...but I suspect pain will need to be suffered to discover just how much better.....
Last edited by Peter Ward; 13-11-2018 at 10:20 PM.
Reason: clarification
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13-11-2018, 11:05 PM
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Registered User
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Join Date: Mar 2015
Location: Melbourne
Posts: 1,495
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I know what you mean, I feel the same. But hey, at least pixinsight comes with a free lifetime supply of bamboo. It's platform non-specific, backwards *and forwards compatible and biodegradeable too!
:-)
-Markus
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14-11-2018, 02:11 AM
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Registered User
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Join Date: Oct 2011
Location: Albany, Western Australia
Posts: 1,461
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yep, that is a fine image Peter, not only does aperture rule, but also focal length in this case.
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14-11-2018, 09:38 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,106
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Quote:
Originally Posted by Joshua Bunn
yep, that is a fine image Peter, not only does aperture rule, but also focal length in this case.
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Thanks Josh. Right tool for the job I guess But, I think the image could do with some Luminance data just to tidy things up a bit....but of course, the moon is now waxing, clouds gathering, plus some rain for good measure
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14-11-2018, 11:41 AM
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Registered User
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Join Date: Oct 2004
Posts: 2,810
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Impressive image Peter congrats, almost 3D like drawing your eye to the centre
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