A Space & astronomy forum. SpaceBanter.com

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » SpaceBanter.com forum » Others » Astro Pictures
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Wbl 685



 
 
Thread Tools Display Modes
  #1  
Old October 11th 17, 05:54 PM
WA0CKY WA0CKY is offline
Senior Member
 
First recorded activity by SpaceBanter: Feb 2008
Posts: 689
Default Wbl 685

This galaxy group is located in northern Pegasus at the border with Lacerta and about 1 degree north of the far more famous Deer Lick Galaxy, NGC 7331. The 6 brightest members are known as the UGC 12127 group and WBL 685. But the group is much larger than this. It is part of the B2 2236+35:[MLO2002] CLUSTER which in turn is part of the Zwicky cluster 2231.2+3732. Each designation has a slightly different distance estimate but it's in the 350 to 400 million light-year range depending on which galaxies redshift you use or average them to about 375 million light-years.

The 6 galaxies that make up the WBL 685 group are NGC 7342, PGC 069378, PGC 069385, PGC 069386, NGC 7345 and PGC 069406 using their WBL numbers 1-6 respectively. The annotated image lists distances to all in the group than NED had redshift data on. It only listed group members though you can see many, obviously very distant galaxies, in the background. While most refer to these by their UGC number I get a ton of email complaining I should use PGC numbers as their systems don't use UGC. The Sky Pro I use can find them using either designation. NED doesn't carry anywhere near all PGC galaxies so they can be a pain to cross reference on my annotated image. Two I listed are from the NSA catalog as it was much shorter than any other designation. They are not in PGC, UGC or other basic catalogs. NSA is the NASA-Sloan Atlas but while carried by NED it isn't carried by SIMBAD.

The galaxies in this group appear to fall into the red and dead category. None show any sign of recent star formation though since some are IR sources that may be going on behind hot obscuring dust. I didn't find much on this group. Still, I thought it interesting enough to put on the to-do list.

14" LX-200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME
Attached Thumbnails
Click image for larger version

Name:	PGC3088581L4X10RGB2X10.JPG
Views:	388
Size:	354.4 KB
ID:	6718  Click image for larger version

Name:	PGC3088581L4X10RGB2X10ID.JPG
Views:	187
Size:	286.4 KB
ID:	6719  
Ads
  #2  
Old October 12th 17, 09:54 PM
slilge slilge is offline
Senior Member
 
First recorded activity by SpaceBanter: Aug 2008
Posts: 151
Default

Great image Rick. Very smooth and detailed. Especially the two northern galaxies are very interesting.
__________________
Stefan
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 07:22 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright 2004-2021 SpaceBanter.com.
The comments are property of their posters.