NGC 6928 and 6930 in Delphinus

[Mike JW]

I always enjoyed visiting this group in Delphinus with the 20" . I first visited this group back in August 2013, when it was galaxy of the month on the Webb Society - https://www.webbdeepsky.com/galaxies/object?object=NGC6928 . Thus it gave me much pleasure to visit it EEVA style. The group are about 204 - 219 million lyrs away and include 6928/30/27/27A.  UGC 11590 is 230 million lyrs away so could be part of the group.

6928 and 6930 are both barred spirals (SBab). 6927 is SO, 6927A is E. The screen shot is from Sky Tools 4. 

Mike

 

 

 

Edited August 7, 2020 by Mike JW

[Martin Meredith]

A lovely shot of these galaxies. NGC 6928 looks like an integral sign' galaxy. Looking at this group on the charts it struck me that it is likely to be in the WBL catalogue of weak groups (many tend to be groups sitting amidst quite a dense star field) and indeed it is, designated WBL 663.

Off-topic, but Sky Tools 4 looks like a very competent piece of software. It would be easy to miss the little galaxy at the tip of NGC 6930. I notice it provides star colours. Do you know how deep does it go in terms of stellar magnitude?

Martin

[Mike JW]

Hi Martin, I am still getting use to ST4 but I do find it a useful piece of software, especially for lists with apparent co-ordinates. The info box on a chart indicates stars down to mag 20.

Mike