Author Topic: Arp 227 and Friends  (Read 6919 times)

Offline sleshin

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Arp 227 and Friends
« on: 2010 December 16 20:00:31 »
Hi All,

Here is my latest image, again mostly processed with PI.

The image of Arp 227 in his catalog shows the two galaxies towards the upper
left in my image. The larger galaxy is NGC 474, a shell galaxy, and it is
thought to be interacting with the spiral to it's right, NGC 470. This
interaction may be the cause of the unusual shell appearance. Another theory
suggests that the shells are tidal tails, the result of interaction with and
absorption of many small galaxies over the past billion years. Another shell
galaxy, NGC 467, is seen towards the right edge of the image. There are numerous
other much smaller galaxies evident. The one below the bright orange star is PGC
4755 which appears to have a small tidal tail as well.

http://sleshin.startlogic.com/stargazergallery/main.php?g2_itemId=415&g2_imageViewsIndex=1

Suggestions and comments always appreciated.

Steve

Steve Leshin

Stargazer Observatory
Sedona, Arizona

Offline Nigel Ball

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Re: Arp 227 and Friends
« Reply #1 on: 2010 December 16 22:50:56 »
Wonderful image Steve

I hadn't seen these 'Shell Galaxies' before

Thanks for sharing  :)
Nigel Ball
Nantwich, Cheshire, United Kingdom

Takahashi FSQ-106 at f/8, f/5 and f/3.6 on AP900, Nikon 28 mm and 180mm f/2.8
SBIG STL-11000M, Astrodon LRGB, 5nm Ha
ST-10XME, Astrodon HaLRGB
www.nigelaball.com

Offline Ginge

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Re: Arp 227 and Friends
« Reply #2 on: 2010 December 17 07:44:09 »
These are new object to me too. Brilliantly captured and processed, Steve! Definately one for the wall.

Best regards,
Ginge

Offline Jack Harvey

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Re: Arp 227 and Friends
« Reply #3 on: 2010 December 17 13:38:54 »
The shells are nicely done and very interesting.  I have not seen this group before.  A bit too much saturation in the other two galaxies and the two bright stars for me (ala Ken Crawford).  But cannot quibble that this is a very nice image.  Keep up the good work.
Jack Harvey, PTeam Member
Team Leader, SSRO/PROMPT Imaging Team, CTIO

Offline sleshin

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Re: Arp 227 and Friends
« Reply #4 on: 2010 December 17 21:25:45 »
Comments appreciated, thanks.

Jack, you're not the first to suggest that at times I may push the color saturation a little too much so I do try to watch this and not get too carried away. On this image I tried for vibrant colors without too much saturation and even cognizant of your comment, I like how the colors came out. Obviously, a matter of personal preference and I very much respect and appreciate your opinion. Good to be reminded, keeps me on my toes.

For the sake of discussion, I'm working on a wide gamut, calibrated monitor(NEC Multisync  LCD2690WUXi) and viewing in a color managed browser, Firefox. For fun, I also viewed the image in IE, which is not color managed and interestingly, the colors appeared a little more saturated. Are you by chance viewing on IE or are you using a color managed browser like Firefox or Safari. Just curious. Obviously I'd rather blame the browser than my processing. ;D

Steve
Steve Leshin

Stargazer Observatory
Sedona, Arizona