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peter_4059
23-06-2012, 11:04 AM
Finally got around to processing some data from earlier in the week. This is about 2 hours on NGC5128 taken with the QHY8 and 10" Newt. I've had a few goes at this in the past year but have never been happy with the result. This one seemed to work out better than earlier attempts.

full res version here:
http://astrob.in/13418/

Comments welcome, thanks for looking.

strongmanmike
23-06-2012, 01:27 PM
Not a bad Cen A at all :thumbsup:

You have the double lobe coming through in the bottom half, this is the first hint of the shells in the halo (http://www.pbase.com/strongmanmike2002/image/108349883/original), nice :thumbsup:

Mike

RickS
23-06-2012, 03:10 PM
Looks very good, Peter! Another subtle and difficult target. Was that taken from the city?

ozstronomer
23-06-2012, 03:27 PM
Very nice Pete, love the star colours. Did you process this with PI?

jjjnettie
23-06-2012, 03:57 PM
Stunning! Love those star colours. :)

peter_4059
23-06-2012, 07:09 PM
Thanks Mike - what is the double lobe you refer to?



Cherrs Rick - yes taken from Ashgrove.



Thanks Geoff. I'm pleased with the way the stars came out. Need to rework the sky background as it looks a bit blotchy with fresh eyes. I used DSS and CS3 to process as I've been having some problems with PI working on the XP machine. Might have to get a new laptop after astrofest.



Thanks JJJ. I was hoping to see some of the blue in the galaxy dust lane however I am happy with the star colours in this one.

brian nordstrom
23-06-2012, 07:38 PM
:) Really very good there Peter espically considering NGC5128 is 20million light years's away , as Nettie said the star colours of the stars in our milky galaxy are really nice , so well done.
Brian.

allan gould
23-06-2012, 08:33 PM
Very nice image Peter. Could do with a little less exposure at the core but the detail is there and we'll captured.

multiweb
23-06-2012, 08:41 PM
Superb shot Peter. Practice makes perfect. Really very nice. Gorgeous colours. Definitely one for the cool wall. :thumbsup::thumbsup::thumbsup:

peter_4059
24-06-2012, 09:24 AM
Thanks Brian. It has always been one of my favorite galaxies and is well placed at this time of year given my limited horizons.



Cheers Allan - probably need to improve my processing a lot as I have plenty of subs and the majority of them look pretty good.



Thanks Marc. Wouldn't it be nice to make every photon count!

Lester
24-06-2012, 09:46 AM
Amazing depth in your image Peter, and as others have said the star colours are well preserved. Thanks for the view.

alpal
24-06-2012, 01:00 PM
Yes - it needs reprocessing.
It has a purple cast & the background is too blotchy.
Imagine what Louie could do with your data?

troypiggo
25-06-2012, 06:56 AM
I missed this somehow. It's awesome! As others have said, nice star colours, and I'm surprised how much of the fainter glow you're getting out of it. Really, really nice.

Ross G
25-06-2012, 09:03 AM
A great photo Peter.

Colours are amazing.

Ross.

strongmanmike
25-06-2012, 09:18 AM
It's that slight buldge on the left side of the lower half of the Halo.

Mike

peter_4059
25-06-2012, 09:19 PM
Thanks for the feedback.



I've now had another go at it from scratch and hopefully have addressed the cast and blotchy background.



Cheers Troy.



Thanks Ross.



Ahh - now I see it - thanks for the heads-up Mike.


Spent quite a few hours tonight reprocessing from scratch with some more subs from the subsequent night making this 38x5mins.

Here's the new full res version:

http://astrob.in/13418/C/

Martin Pugh
25-06-2012, 09:47 PM
Nicely done Peter

Good resolution and good colour balance.

cheers
Martin

cventer
25-06-2012, 09:52 PM
Wow thats a beauty. Nicely done. Impressive with only 2 hours of data.

MrB
25-06-2012, 10:21 PM
The repro looks great with less blue. Nice work :thumbsup:

alpal
26-06-2012, 02:41 PM
That's much better - I knew it was good data.
Well done - I think we would all hope to do as well. :)

cheers
Alpal

jjjnettie
26-06-2012, 08:07 PM
It's stunning Pete. :)

RickS
26-06-2012, 08:19 PM
Great repro, Peter!

RobF
26-06-2012, 09:56 PM
Stunning result from the city Peter. Congrats! The 10" is really showing its merit there.

I found the first effort particularly striking except for blotches in the outer sky background as you've said. Who cares though when the stars look so nice and you have so much of the galaxy there!

Leonardo70
27-06-2012, 02:10 AM
Really nice ... congratulations...

All the best,
Leo

peter_4059
27-06-2012, 05:59 PM
Thanks for the feedback Martin.



Thanks Chris. I added a bit more data to this version so it is now 3 hrs. It still amazed at what can be done from a light polluted site in such a short time.



Cheers Simon. It pays to take time processing and look with fresh eyes the next day.



Thanks for the feedback.



Cheers JJJ. I'm having a lot of fun with the gear now - just a few small changes to make :D



Thanks Rick.



Cheers Rob. I pushed the original one too far in search of the blue around the central dust band. I was surprised to see what I think are a few small background galaxies starting to appear.



Thanks Leo.

atalas
27-06-2012, 06:02 PM
Nice work Peter.

stevous67
15-07-2012, 09:33 PM
That is a beautiful 5128 Peter. :thumbsup:

Very colours, and lots of detail. Well done.

Steve