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Old 23-07-2020, 07:10 PM
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Centaurus Chain of Galaxies

This image highlights the very unusual almost perfect spiral in the centre of the image.
Galaxy groupings are interesting images.

Last weekend at my dark site.

FLI ML16, CDK17, AP1600.

LRGB 80 60 30 30 all 10minute subexposures.

https://pbase.com/gregbradley/image/170898004/large regular size

https://pbase.com/gregbradley/image/170898004/original large size

Greg.
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Old 23-07-2020, 08:11 PM
PeterSEllis (Peter)
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Hi Greg,
Another interesting field of Galaxies, a great shot. What is the IC/NGC of that Central Galaxy? I think I would like to have a go at that one myself and add it to my collection.

Cheers
Peter
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  #3  
Old 24-07-2020, 08:44 AM
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Originally Posted by PeterSEllis View Post
Hi Greg,
Another interesting field of Galaxies, a great shot. What is the IC/NGC of that Central Galaxy? I think I would like to have a go at that one myself and add it to my collection.

Cheers
Peter
Hi Peter,

I did a plate solve and Sky X didn't label it. Tried Astrobin but no images there.

So I don't know.

Greg.
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Old 24-07-2020, 08:45 AM
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Those two galaxies which show the most detail are well processed nicely Greg.
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Old 24-07-2020, 08:51 AM
brisen (Brian)
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Hi Peter

The spiral in the middle is NGC4622.

Brian
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Old 24-07-2020, 09:02 AM
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Fascinating rich field of interstellar goodies on offer there Greg, nice one!
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Old 24-07-2020, 09:08 AM
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Definitely a classic spiral catch there Greg. A beauty to be sure.
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Old 24-07-2020, 09:10 AM
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Quote:
Originally Posted by Paul Haese View Post
Those two galaxies which show the most detail are well processed nicely Greg.
Thanks Paul.

Quote:
Originally Posted by brisen View Post
Hi Peter

The spiral in the middle is NGC4622.

Brian
Oh thanks Brian.

Quote:
Originally Posted by Andy01 View Post
Fascinating rich field of interstellar goodies on offer there Greg, nice one!
Thanks Andy. There are several of these types of galaxy groupings.

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Originally Posted by Ryderscope View Post
Definitely a classic spiral catch there Greg. A beauty to be sure.
Thanks Rodney. Its almost too perfect.

Greg.
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Old 24-07-2020, 09:15 AM
PeterSEllis (Peter)
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Originally Posted by gregbradley View Post
Hi Peter,

I did a plate solve and Sky X didn't label it. Tried Astrobin but no images there.

So I don't know.

Greg.
Hi Greg
Not a problem, thanks for trying.

Cheers
Peter
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  #10  
Old 24-07-2020, 01:56 PM
Placidus (Mike and Trish)
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A lovely image Greg. Fine acquisition and skillful processing.

It always amazes how much one galaxy can differ from the next, even before they start interacting.
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  #11  
Old 24-07-2020, 02:51 PM
PeterSEllis (Peter)
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Hi Peter

The spiral in the middle is NGC4622.

Brian
Thanks Brian for the information, I have now added that field on my list of shots to do.

Cheers
Peter
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  #12  
Old 24-07-2020, 05:17 PM
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A lovely image Greg. Fine acquisition and skillful processing.

It always amazes how much one galaxy can differ from the next, even before they start interacting.
Thanks M&T. Yes its amazing there are so many shapes and sizes.

Greg.
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Old 24-07-2020, 06:57 PM
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A very impressive result. A really clean image with no processing artefacts to speak of. The CDK is really showing some class there.

Lost of faint fuzzies and the centre spiral is a delight.

Nice one
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Old 25-07-2020, 06:39 AM
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Quote:
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A very impressive result. A really clean image with no processing artefacts to speak of. The CDK is really showing some class there.

Lost of faint fuzzies and the centre spiral is a delight.

Nice one
Thanks Peter. I tried to keep the processing more minimalist as I think that some of my processing is too involved and simpler is better.

Greg.
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Old 25-07-2020, 11:13 AM
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Excellent, that's a wild group of galaxies hanging out together. That central spiral galaxy is mesmerising !!
A question. Do you do much sharpening with deconvolution (or whatever) to get it like that? Or is that what your raw data produces
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Old 25-07-2020, 01:57 PM
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Great distant galaxy image Greg, what the CDK17 was designed to do That mosquito coil galaxy has caught my attention a few times when I have been sifting for possible targets too.

Nice job

Mike
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  #17  
Old 26-07-2020, 07:59 AM
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Quote:
Originally Posted by ChrisV View Post
Excellent, that's a wild group of galaxies hanging out together. That central spiral galaxy is mesmerising !!
A question. Do you do much sharpening with deconvolution (or whatever) to get it like that? Or is that what your raw data produces
No sharpening at all. In fact the whole image has minimal processing. No Decon. I tend not to use Decon that much anyway as its a bit of a rough technique and attacks stars easily.
Attention on the basics, good acquisition, clear dark skies and these skies were particularly transparent probably after windy days earlier.
That's what the downloads look like.

Quote:
Originally Posted by strongmanmike View Post
Great distant galaxy image Greg, what the CDK17 was designed to do That mosquito coil galaxy has caught my attention a few times when I have been sifting for possible targets too.

Nice job

Mike
Cheers Mike. These galaxy groupings always make for an interesting image.
I agree this is definitely CDK territory.

Greg.
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  #18  
Old 30-07-2020, 09:00 AM
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Good one Greg!
A very interesting FOV!!
Cheers,
Tim
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  #19  
Old 30-07-2020, 09:14 AM
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Good one Greg!
A very interesting FOV!!
Cheers,
Tim
Thanks Tim.

That little central spiral galaxy might make a nice target for your big scope.

Greg.
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Old 30-07-2020, 10:08 AM
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nice one greg - i really like this one.
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