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03-06-2018, 08:41 AM
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Arp 271 (NGC5426/7)
Arp 271 is a pair of similarly sized interacting spiral galaxies, NGC 5426 and NGC 5427. It is not certain whether the galaxies are going to eventually collide or not. They will continue interacting for tens of millions of years, creating new stars as a result of the mutual gravitational attraction between the galaxies, a pull seen in the bridge of stars already connecting the two. Located 90 million light-years away, the pair is about 130,000 light-years across.
The galaxies are each about 3' across, so not large.
https://www.astrobin.com/349612/0/?nc=
Higher res here
https://www.astrobin.com/full/349612/0/
I had some data from this object from about 4 years ago. I added another two hours at the star party. So two different cameras and 4 years separation.
Telescope: 12.5" Planewave CDK
Mount: AP900
Camera 1: QSI@-20---2 hours
Camera2: FLI Proline@-30----2 hours
FOV: about 20' x 20'
Processing: PixInsight
I still need some good luminance data to sharpen things up a bit more.
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Last edited by Geoff45; 03-06-2018 at 09:46 AM .
03-06-2018, 09:05 AM
Highest Observatory in Oz
Join Date: May 2006
Location: Canberra
Posts: 17,152
Excellent result Geoff. My..?.. arhem
radar was registering... but I think you have used it pretty well here, nice job on this, they really are a super looking pairing
Mike
03-06-2018, 09:54 AM
a.k.a. @AstroscapePete
Join Date: Oct 2011
Location: Sydney
Posts: 1,617
Very, very nice Geoff. Loving the colours and detail and all the little background galaxies in the field are an added bonus.
03-06-2018, 10:04 AM
Supernova Searcher
Join Date: Mar 2005
Location: Cambroon Queensland Australia
Posts: 9,313
Nice one Geoff,as said elsewhere nice colours
Compare yours to a 8.2 mt scope, very credibly
in my opinion.
https://scitechdaily.com/vimoss-fina...-and-ngc-5427/
Cheers
03-06-2018, 01:49 PM
Ultimate Noob
Join Date: Aug 2011
Location: Melbourne
Posts: 6,980
Lovely Geoff
As Mike says, borderline
And as Ron mentions, compares well to the "big boys"
03-06-2018, 05:20 PM
Registered User
Join Date: Sep 2014
Location: North Queensland
Posts: 3,240
A beautiful image Geoff.
Note: Dropping background brightness a notch would have allowed the...vermis to go past Mike's radar undetected
04-06-2018, 10:30 AM
Registered User
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Location: Cairns
Posts: 1,087
Very well done!
Cheers,
Tim
04-06-2018, 11:37 AM
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Quote:
Originally Posted by
strongmanmike
Excellent result Geoff. My..?.. arhem
radar was registering... but I think you have used it pretty well here, nice job on this, they really are a super looking pairing
Mike
Thanks Mike. Are you referring to the NR or the decon? (Or both?)
Quote:
Originally Posted by
Retrograde
Very, very nice Geoff. Loving the colours and detail and all the little background galaxies in the field are an added bonus.
Thanks Pete. There was a bit of a trade-off here between cropping to highlight the galaxies or leaving the galaxies smaller in a wider field.
Quote:
Originally Posted by
astroron
Thanks Ron. I'd still prefer the 8.2m scope, however.
Quote:
Originally Posted by
Atmos
Lovely Geoff
As Mike says, borderline
And as Ron mentions, compares well to the "big boys"
Quote:
Originally Posted by
topheart
Very well done!
Cheers,
Tim
Thanks Tim and Colin
04-06-2018, 11:39 AM
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Quote:
Originally Posted by
Slawomir
A beautiful image Geoff.
Note: Dropping background brightness a notch would have allowed the...vermis to go past Mike's radar undetected
Thanks Suavi
Took your advice, although the old eagle-eye Sidonio would probably still notice.
04-06-2018, 12:52 PM
Highest Observatory in Oz
Join Date: May 2006
Location: Canberra
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Quote:
Originally Posted by
Geoff45
Thanks Mike. Are you referring to the NR or the decon? (Or both?)
well, I was referring to my over sensitive decon radar
Mike
04-06-2018, 03:24 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
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A beautiful image Geoff, well acquired and well processed. Very pleasing. Lots of lovely detail in the galaxies, and lots of distant friends.
04-06-2018, 03:29 PM
My God it's full of stars
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
Top stuff Geoff, gotta love colliding/interacting galaxies, a real crowd favourite, well done!
04-06-2018, 03:40 PM
Registered User
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Location: Melbourne Australia
Posts: 461
Great shot. Nice detail and colours.
Mark
04-06-2018, 04:01 PM
ze frogginator
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04-06-2018, 07:14 PM
PI cult recruiter
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A fine pair, Geoff!
06-06-2018, 07:18 PM
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Quote:
Originally Posted by
strongmanmike
well, I was referring to my over sensitive decon radar
Mike
You’ve no idea of all the various nefarious subterfuges I had to go through to get a halfway decent luminance out of some pretty average data.
Quote:
Originally Posted by
Placidus
A beautiful image Geoff, well acquired and well processed. Very pleasing. Lots of lovely detail in the galaxies, and lots of distant friends.
Thanks a lot Mike and Trish
Quote:
Originally Posted by
Andy01
Top stuff Geoff, gotta love colliding/interacting galaxies, a real crowd favourite, well done!
Thanks Andy. Yeah, I really like interacting galaxies. Must be pretty interesting for any intelligent aliens living there.
Quote:
Originally Posted by
markas
Great shot. Nice detail and colours
Mark
Quote:
Originally Posted by
multiweb
Quote:
Originally Posted by
RickS
A fine pair, Geoff!
Thanks Markas, Marc and Rick
06-06-2018, 07:47 PM
Starry Eyed
Join Date: Dec 2007
Location: Wonga Park
Posts: 692
Super image Geoff.
Lovely image processing, and impressive scale/detail given the small size.
You must be happy with that!
10-06-2018, 02:21 PM
Lee "Wormsy" Borsboom
Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
Nice job, Geoff, thanks for sharing. Gotta love the ARP catalogue. I can't even see any artifacts caused by the decon so I think you did well there.
11-06-2018, 07:21 AM
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Quote:
Originally Posted by
Jeff
Super image Geoff.
Lovely image processing, and impressive scale/detail given the small size.
You must be happy with that!
Thanks Jeff. Yes, I’m much happier with the final result than I was when I looked at the raw data.
Quote:
Originally Posted by
codemonkey
Nice job, Geoff, thanks for sharing. Gotta love the ARP catalogue. I can't even see any artifacts caused by the decon so I think you did well there.
Thanks Lee. Yep, the Arp catalogue is a good inspirational source.
12-06-2018, 01:08 PM
Registered User
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Location: Adelaide
Posts: 9,937
Nice silky smooth image with loads of detail. Nicely done Geoff.
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