Object name: NGC6015
I've heard of a cometary nebula, and have some on my to-do list in fact, but I've never heard of the term "cometary galaxy". If there is such a thing it is in this image. There is a very distant galaxy found by the HST that is now called the "Comet Galaxy" (http://www.spacetelescope.org/images/heic0705a/ in the upper left corner) but it is a far poorer "comet" than the one in this image. More on it in a bit. First some on the rest of the image.
Related Designation(s):2MASS J15512524+6218362, 2MASX J15512523+6218361, 2MASXi J1551252+621836, AKARI J1551267+621846, CGCG 1550.6+6227, CGCG 298-003, CGCG 319-028, IRAS 15506+6227, IRAS F15506+6227, ISOSS J15513+6218, KIG 0710, MCG +10-23-003, NGC 6015, NGC6015, NSA 146459, NVSS J155124+621835, PGC 056219, UGC 10075, UZC J155125.4+621836, [SLK2004] 1177,