ASTRO: Arp 164

Arp 164/NGC 455 is a merger remnant in Pisces some 250 million
light-years distant. Arp put it in his category for galaxies with
diffuse elements. It appears these diffuse elements are looping tidal
trails of stars ripped from the merging galaxy showing the path of the
merging galaxy as it was torn apart orbiting the larger galaxy. The NGC
Project classifies it simply as peculiar. NED says S?. It likely will
settle down to become an elliptical galaxy.

The field seems to contain a few galaxies with the somewhat closer
redshift of about 210 million light-years, two of which are in the
image. A couple others are just outside it. It Arp 164 related to
these? I have no idea. NED has little data on this field. Only a few
galaxies in my image are in NED's database and most have no redshift
data. All galaxies NED catalogs are shown in the annotated image. A
question mark is used for the distance of most since they don't have any
redshift data. Those without any catalog entry and therefore left blank
on the annotated image are apparently anonymous.

I wasn't going to prepare an annotated image but then 9 asteroids showed
up in the image (actually more but many didn't survive the processing).
Within 20 minutes of Arp 164 the minor planet center showed 18
asteroids down to magnitude 21 which was my limit at the rate these were
moving. The 9 that survived the color combine a

(180762) 2004 PC14 magnitude 19.3
(105898) 2000 SC188 magnitude 18.5
2007 VJ230 magnitude 19.5
(256661) 2007 XD22 magnitude 20.1
2010 TH124 magnitude 20.2
(102564) 1999 UH30 magnitude 19.9
(279746) 1998 MK6 magnitude 20.6
2010 TC159 magnitude 20.9
(251674) 1995 SP22 magnitude 20.5

Not a record but getting close.

Arp's image:
http://ned.ipac.caltech.edu/level5/A...ig_arp164.jpeg

14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

Rick
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Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".