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Geoff45
03-01-2014, 05:10 PM
http://www.astrobin.com/70722/

I took this one over last weekend. This is an interesting galaxy pair. They look as if they are associated, but in fact this is a nice example of one of Halton Arp's discordant redshifts. NGC1232B has a recessional velocity of about 5000km/s greater than NGC 1232, which, according to current theory and my calculations makes NGC1232B 200 million light years further away than NGC 1232.

Have a look at the pic of the same galaxy I posted in 2008
http://www.iceinspace.com.au/forum/showthread.php?t=28540&highlight=1232
Some improvement is evident.

Telescope: 12.5" PlaneWaveCDK
Mount: AP900
Camera: QSI540wsg
Exposure: 5.3 hours, more or less equally distributed between LRGB
Geoff
RickS
03-01-2014, 05:38 PM
That's a nice NGC 1232, Geoff!

Did you invert and look for the Sidonio jet? Perhaps you could pool your data with Mike and Greg Bradley to see what a bigger stretch might reveal?

Cheers,
Rick.
Peter.M
03-01-2014, 05:46 PM
Great image !




http://www.astrobin.com/70722/0/?mod=inverted

Astrobin now has an inverted monochrome function!
RickS
03-01-2014, 06:02 PM
Needs an extreme stretch as well as inversion to look for those faint jets!
Geoff45
03-01-2014, 06:16 PM
Thanks for all the comments. Interesting about looking for the jet. I'm in the middle of a birthday party, so I'll work on it tomorrow.
Geoff
allan gould
03-01-2014, 06:24 PM
Massive improvement in those two images and essentially with the same equipment. Well done and a beautiful image.
Allan
gregbradley
03-01-2014, 06:39 PM
A beautiful image Geoff. 1232B if it were close to 1232 would have distorted that perfect spiral as further evidence it is not close by.

Greg.
Geoff45
04-01-2014, 11:57 AM
Hi Rick. I tried inverting and stretching, but nothing that could be seen without averted imagination. However, a contour plot on the inversion does seem to show some indications.
RickS
04-01-2014, 12:34 PM
That's in the same spot... perhaps Mike isn't crazy after all :lol:
strongmanmike
04-01-2014, 01:38 PM
I don't see things :)



Oh and... I'm definitely not crazy :)

This is a great shot of this galaxy Geoff, well done...even if it only shows a slight hint of the Sidonio Jet :help: One minor comment, to my eye it looks perhaps a tad Yellow and Blue :question: but even so, it is quite appealing :thumbsup:

MIke