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Martin Pugh
11-05-2017, 10:03 PM
Good evening.

Still putting the RH305 through its paces here and have had some interesting camera problems which I think I may have resolved.

Anyway this grouping of Galaxies is known as Abell 3574 and you will no doubt immediately notice the oddball in this field: the Seashell Galaxy.

http://martinpughastrophotography.id.au/images/Abell3574.jpg

AP RH305/SBIG STXL16200 on a PMEII. LRGB comprising 7:3:3:3 hours.

thanks for checking it out.
cheers
Martin

marc4darkskies
12-05-2017, 09:30 AM
That's a beautiful field Martin! Apart from the seashell, there are many other interesting galaxies to peruse! Nice job!

I'm in a fairly bright room atm, so I had to do a quick stretch to get the full impact. Wondering if there is there room to manoeuvre in the data to be able to brighten the image (mainly midtones & highlights) a little anyway?

Cheers,
Marcus

astroron
12-05-2017, 09:32 AM
Great image Martin.
I just had a good read up on NGC5291 (seashell galaxy) a very interesting galaxy,pity it's a bit faint at around 13th mag for visual,but will have a try at it with my 16"scope.
Thanks for posting.
Cheers:thumbsup:

LewisM
12-05-2017, 10:53 AM
Fascinating field

topheart
12-05-2017, 10:59 AM
Beautiful!!
Cheers,
Tim

el_draco
12-05-2017, 03:25 PM
Wall to wall universe. Love it !

RickS
12-05-2017, 04:07 PM
That's great, Martin. A very promising start :thumbsup:

We're about to commission a TEC 160FL/FLI 16200 combo in New Mexico. Will be testing this weekend if the Precise Parts parcel arrives in time :)

Cheers,
Rick.

gregbradley
12-05-2017, 04:46 PM
Fantastic Martin. I love the pinpoint stars.

Greg.

Martin Pugh
12-05-2017, 06:00 PM
Thanks everyone.

Marcus - with Windows 7 and a calibrated monitor I was able to reproduce the web image exactly as it appeared on my screen. Having just upgraded to Win 10 Pro, and having recalibrated my monitor (Spyder Elite), I am having difficulty getting that web image right. There are two photo viewers in Win 10 'Photos' and 'Photo Viewer'. The former appears to show a heavily clipped background, whilst the latter presents the image as I intended.

So may I ask, is the background looking too dark/almost clipped or a greyish colour?

thanks
Martin

RickS
12-05-2017, 06:08 PM
Not clipped looking on my fancy calibrated monitor (and with a fair gap on the LHS according to the histogram.)

Cheers,
Rick.

gregbradley
12-05-2017, 06:42 PM
Yeah same. Quite a bit of room to the left of the histogram. Quite a dark background considering how much room there is to the left of the histogram.
Is this a Martin processing trick?

Greg.

Martin Pugh
12-05-2017, 06:50 PM
LOL - No not at all :-)

Thanks for reporting back. I actually downloaded the image from my website, opened it up in Photoshop, and the background was dark and there was NO room to the left of the histogram! However, when prompted, I did not change the sRGB profile to the working profile.

I have now uploaded a new image using a different approach to creating the web image and the downloaded version is now as I intended.

cheers
Martin

gregbradley
12-05-2017, 07:48 PM
Looks great to me. These galaxy fields are always amazing.

Greg.

Paul Haese
12-05-2017, 10:02 PM
Looks good to me Martin. Subtle colour, nil noise and interesting field.

alpal
13-05-2017, 08:50 AM
Hi Martin,
that's a great image &
here is close up from the VLT:
https://en.wikipedia.org/wiki/NGC_5291#/media/File:Eso1547a.tif


cheers
Allan

Martin Pugh
13-05-2017, 08:57 AM
Thanks very much again, and for the link. Bizarre galaxy or what?

Cheers
Martin

DJT
13-05-2017, 01:44 PM
Some really interesting galaxies there but the sea shell definitely tops the bizarre list.

Excellent stuff. :thumbsup:

Stevec35
17-05-2017, 02:10 PM
Lovely shot of a very interesting field Martin. It may be worth tackling this with a longer focal length. The ESO VLT shot of the seashell is amazing.

Cheers

Steve

Martin Pugh
18-05-2017, 08:29 PM
Thank you David/Steve

I must check out that ESO shot as I have not seen it.

Cheers
Martin

cometcatcher
19-05-2017, 09:49 AM
My God, it's full of galaxies. Exquisite image Martin.

The large telescopes show even more galaxies zoomed in. It's like a galaxy deep field. The more you zoom, the more galaxies pop out. And that's just a glimmer of the grand scale of the universe. Don't mind me, I'm just having one of those moments. ;)

Peter Ward
19-05-2017, 10:31 AM
The 16200 chip and Honders are clearly a great match. Nice one :thumbsup: