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WBL 682 galaxy group with LBN 430



 
 
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Old April 5th 15, 08:56 PM
WA0CKY WA0CKY is offline
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Default WBL 682 galaxy group with LBN 430

SpaceBanter lost this file so am reposting it.
Rick

The WBL 682 galaxy group consists of 4 galaxies though one appears to be two galaxies sharing a common envelope. It is located in southern Lacerta about 220 million light-years distance. Three (or four depending on how you count the double galaxy) appear to be interacting. The fourth appears to be an innocent bystander.

Adding a streak of color to the image LBN 430 is the streak through the right side of the image. Beyond it is the UGC 12064 galaxy group also at about 220 million light-years.

UGC 12073 is a large spiral apparently drawn out even further due to interaction with other members of the group. The full extent of its two drawn out arms reaches about 156,000 light-years making it a huge spiral. The core of this galaxy appears double. I found no mention of this in the literature (what little there was). I don't really see the bar it is said to have. It could be these are knots at either end of a very foreshortened bar that outshine the core.

Near the center of the group is UGC 12075. It appears it could have made Arp's atlas under spirals with a companion on its arm. It appears to have drawn out the arm much like in the case of M51 and its companion. Oddly I couldn't find the companion in NED's database under any designation.

Further east is CGCG 514-055 which appears to refer to both objects in a common halo. While I found a separate designation for the northern core I found none for the lower one other than the above designation centered on the entire halo rather than the dense core. Neither had any distance information. They may be just interacting with each other and not even related to the other three. One note refers to the pair as possibly being a symbiotic pair. I hadn't realized galaxies were living creatures. The bystander is CGCG 514-056. NED doesn't try to classify it. Looks S0/a to my untrained eye.

UGC 12064 is also known as 3C 449 a strong radio source with twin jets. An HST image shows a 3" wide dust lane around the very core of the galaxy. I wasn't able to find it in my data. Another note says it is rich in globular star clusters but again I didn't pick any up nor does NED catalog any. http://iopscience.io...51804.fg20.html Usually the jets are at right angles to the disk of a disk galaxy but not in this case. It might be due in part to the disk being highly warped. You can read a lot more about it at this PDF. http://arxiv.org/pdf...h/0510650v3.pdf

Being in the zone of avoidance only the major galaxies of the field have been cataloged, even few have much data so the annotated version is rather skimpy on details.

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