Hi
this group of galaxies was interesting to image - it's pretty low down and decent resolution was not easily available (average for lum was 2.2 arcsec FWHM). The major spiral - NGC6872 - is apparently a giant, about 5x further across than the milky way (ie about 500,000 light years) with possibly as many as 2 trillion stars. It has probably been disrupted by collision with IC4970. The affected arm has been replenished and now hosts new blue star forming regions and a faint throw-off ball of stars that may be a new dwarf galaxy in the making. The colour has not been unduly fiddled with - this seems to be roughly what it would look like through hypersensitive eyes (eg see the much higher res reference image). The other galaxies are probably also worth a look.
full res (0.91 arcsec) cropped:
http://www.astrobin.com/full/117049/D/?real=&mod=
Thanks for looking. Regards Ray
ref see
http://en.wikipedia.org/wiki/File:NG...nd_IC_4970.jpg.