The tight multi-galaxy group that includes UGC 12127

[Marko]

In looking at Ngc7331 area in MegaStar over the weekend I noticed a small galaxy group of 5 members that it turns out I had observed in Nov 2008 in 21.1 skies in my 18" so I missed the Mag 16 tiny member just to the east of Ugc 12127. The galaxies form a small rectangle and are all just south of Ngc7342 and Ngc7345 by about 9' with CGCG 514-87 midway between but off to the east. I will be re-visiting this group in darker skies this summer to try to squeeze out MCG +6-49-62 and another very dim galaxy 3' N of the tight group. I was wondering if the 5 galaxies all in a 4.5' diameter field may be a Rose group or other group? This makes a nice 'off the beaten path' group that is worth visiting whenever I re-visit Ngc7331.

[Steve Gottlieb]

This is a very nice group that I've observed twice, in 1988 and 2004. The only galaxy cluster/group designation I can find is WBL 685 (http://adsabs.harvard.edu/cgi-bin/bib_query?1999AJ....118.2014W). I know you can pick up a couple of additional members in darker skies. Here are 7 that I logged in the small clump surrounding UGC 12127, though one galaxy was marginal.

MCG +06-49-056 = CGCG 514-078 = PGC 69378
22 38 25.1 +35 21 57
V = 15.1; Size 1.0'x0.3'; Surf Br = 13.6; PA = 24d
Faint, small, very elongated 3:1 SSW-NNE, 0.6'x0.2'. Forms an equilateral triangle with a mag 11.5 star 1' NE and a mag 13.5 star 1' NW. Located 2.4' NNW of UGC 12127 in a tight group of 5 galaxies with MCG +06-49-061 1.3' NE.

UGC 12127 = MCG +06-49-058 = CGCG 514-080 = PGC 69385
22 38 29.5 +35 19 41
V = 13.4; Size 1.5'x1.5'; Surf Br = 14.3
Fairly faint, fairly small, round, 40" diameter, broad concentration to a very small slightly brighter core and occasional very faint stellar nucleus. A couple of mag 15.5 stars are close south and a mag 14 lies 1' NW. Brightest in a group of 9 faint galaxies including 4 other galaxies within 3'; MCG +06-49-60 1.3' NE, MCG +06-49-62 1.7' E, MCG +06-49-56 2.4' NNW and MCG +06-41-61 3.0' N.

MCG +06-49-061 = CGCG 514-081 = PGC 69386
22 38 30.2 +35 22 41
V = 14.9; Size 0.9'x0.3'; Surf Br = 13.3; PA = 147d
Extremely faint and small, slightly elongated ~15"x12". Just following a mag 11.5 star which detracts from viewing. A 9" pair of mag 14 star lies 1.2' NE and MCG +06-49-56 is 1.3' SW.

2MASX J22383404+3523340
22 38 34.0 +35 23 34
Marginal sighting. Situated close preceding a 9" pair of mag 14 stars. in the tight grouping around UGC 12127. The double was cleanly resolved and an extremely faint, small glow was glimpsed a few times but not consistent enough for a postive sighting.

2MASX J22383477+3525390 = PGC 3088581
22 38 34.8 +35 25 39
Size 0.6'x0.3'
Extremely faint, very small, round, 10" diameter (viewed core only of this elongated galaxy). Located 1' N of a large mag contrast pair of 12/14.5 stars. Located 6' N of UGC 12127 in a group.

MCG +06-49-060 = PGC 69384
22 38 34.8 +35 20 29
V = 13.8; Size 0.4'x0.4'; Surf Br = 11.7V
Very faint, very small, round, 0.3' diameter. A mag 15 star is ver close north. Located 1.3' NE of UGC 12127 in the core of the cluster. MCG +06-49-062 lies 1.1' SE.

MCG +06-49-062 = PGC 69389
22 38 37.7 +35 19 32
Size 0.3'x0.3'
Extremely faint and small, round, 10" diameter Faintest in the core of the UGC 12127 group with MCG +06-49-060 1.1' NW and located just 1.3' E of UGC 12127. Required averted to glimpse but observation repeatable.

[Marko]

It is MCG +06-49-062 = PGC 69389 (ESE of Ugc12127) and 2MASX J22383477+3525390 = PGC 3088581 (in the center) that I would like to also see all together in this group. Since you used 18" scope I feel like I will have luck. Thanks Steve.

[Uwe Glahn]

Great topic Mark,

a really overlooked group. Most of us went to the SW to NGC 7320 and friends, after observing NGC 7331.

A fried of mine showed me the UGC 12127 group with his 16" and it was stunning, even with 16". I came back with 27" and made a sketch of the group, see below.

255
homepage (http://www.deepsky-visuell.de/Zeichnungen/UGC12127-Gruppe.htm)

[Marko]

Ngc7331 and 4 fleas as well as Ngc7320 are 'required visitations' to be sure. This other group I am going to add to my revisits of that area. One of the most challenging galaxies near Stephan's Quintet I have only observed a couple times is Ngc7320C 3.5' due east of Ngc7319, the northern member of the 7320 hickson. (not sure if it is IN the quintet but from our view it is apparently 'in' the quintet. My plan is to break in my new 6 and 8mm TMB SuperMonos on this apparently associated object as a limit object. (hopefully next week at GSSP!)

[FaintFuzzies]

Hi Mark,

I'm sure that you are at GSSP now. There is an eighth galaxy in the group, the one just off the NE tip of MCG +6-49-56. I'm sure that with your TMB's, you'll get all eight pretty easily under those skies.

My recent observation is here - the fifth one down from the top.

http://www.faintfuzzies.com/OR-Oct222011-SR.html

[Steve Gottlieb]

Thanks for the tip, Alvin. Another reason to revisit the group with my 24".

Steve

[Howard B]

I had a very satisfying look at this galaxy group at the GSSP this past Friday night. Unfortunately there was a great deal of sky glow - the banding of the glow was the most obvious I've ever seen - and the seeing was only so-so at the time, but nonetheless this is a wonderful group that I plan to revisit on a better night. I'll post my notes and sketch when I've scanned them, probably sometime next week.

[Marko]

Caught 7 members of this group on my re-visit at GSSP (best on Saturday) and yes I was having fun with the 6,8,10 TMBs out there. Did not get the 8th one because I had not seen Alvin's note (wireless was not so good this year and often out it seemed so I gave up on it). I had a goal of revisit of the group to pick up the 2MASX members where one was 1.2' NE of the northern CGCG 512-81 and the other was yet again 2' farther north as if the hub of the full complex that includes non-members Ngc7342, Ngc7345, and CGCG 514-87. Sadly I had not noted MCG +06-49-057 well enough to catch my attention and so I still am shy one member.

[PeterN]

Marko,

We'll have to view this group up at Lassen in a few weeks, me with my 24". Here's an image of the area:
269


In looking at Ngc7331 area in MegaStar over the weekend I noticed a small galaxy group of 5 members that it turns out I had observed in Nov 2008 in 21.1 skies in my 18" so I missed the Mag 16 tiny member just to the east of Ugc 12127. The galaxies form a small rectangle and are all just south of Ngc7342 and Ngc7345 by about 9' with CGCG 514-87 midway between but off to the east. I will be re-visiting this group in darker skies this summer to try to squeeze out MCG +6-49-62 and another very dim galaxy 3' N of the tight group. I was wondering if the 5 galaxies all in a 4.5' diameter field may be a Rose group or other group? This makes a nice 'off the beaten path' group that is worth visiting whenever I re-visit Ngc7331.

[Bill Weir]

First of all I'd like to say I'm stoked that I stumbled upon this site.

Last night this little group was my first stop out with my 20" from my backyard in the forest on Southern Vancouver Island. SQM reading of 21.13, transparency 7/10, seeing 7/10 elevation 100 metres.

What a fabulous little cluster, at 440X (7mm BGO HD in an Antares 1.6X barlow) I was able to make out the 6 main glaxies in the group. I did notice a hook to the NE tip of MCG+6-49-56 but I won't quite go so far to call that a direct sighting of that wee faint one there. I think I'll revisit again tonight because I also didn't notice Mac 2238+3523.

I wish there were darker skies closer that didn't alway threaten fog. Sigh, the downside of living on an island.

Bill

[Jimi Lowrey]

Welcome to Deep Sky Forum Bill.

[Marko]

Picked up the 8th member that is inline with a dominant elongated member. This was from Grandview at 8600 feet last new moon. Short trip due to mixed weather but so much fun for daytime sights that all in all it was a set of 'Grand Views'.