[AZ-Observing] Re: NGC 4490(Cocoon Galaxy) and NGC 4485
- From: "RL Gent" <RLGent@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Fri, 4 May 2012 21:49:17 -0700
Like so many other images posted to this website, this is absolutely
excellent work.
To make a comparison, I looked at the original Arp catalog. Actually, it's
my photocopy of the 1978 reprint. It is amazing how much more detail you
have, and Arp was using a 200-inch. Wonderful! I don't know this area of
the sky well enough to answer your question on the stray light processing.
Thank you,
Bob Gent
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Bernard Miller
Sent: Friday, May 04, 2012 9:05 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] NGC 4490(Cocoon Galaxy) and NGC 4485
Hi,
Here is a pair of interacting galaxies you don't see very often. They have
already collided or interacted, leaving each with an irregular shape. It is
believed they were both spiral galaxies before their interaction. I have
shown the cropped version, but you can click on the link for the uncropped
version. There are dozens of faint galaxies in the uncropped version. I also
had some stray light in this image and I used a Photoshop technique to fix
it. I am curious if anyone can tell what part of the image was fixed. I have
never tried this technique before and I am curious to know if it is obvious.
http://www.azstarman.net/NGC4490.htm
Bernard
--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
Other related posts:
