Object name: NGC5964
NGC 5964/IC 4551 is a low surface brightness barred spiral with a bright bar but faint arms. To my eye, the bar is somewhat bowed rather than straight as most bars are. It is located in Serpens Caput about 73 million light-years distant by redshift and 87 million by the mean of other non-redshift measurements. NED classifies it as SB(rs)d with the possibility it has an AGN core. Seligman and the NGC Project say it is SBcd with no mention of a ring or the AGN. I can't see the ring either. Assuming the redshift indicated distance it is about 113,000 light-years across. Using the larger non-redshift distance it is almost 135,000 light-years in size. Either way, it is a large spiral.
Related Designation(s):2MASS J15373625+0558257, 2MASX J15373722+0558068, ASK 460573.0, CGCG 050-047, CGCG 1535.1+0609, HIPASS J1537+05, HIR J1537+0558, IC 4551, IRAS 15351+0608, IRAS F15351+0608, ISOSS J15375+0558, KIG 0691, MCG +01-40-008, NGC 5964, NGC5964, NSA 079907, PGC 055637, SDSS J153736.21+055826.4, UGC 09935, UZC J153736.3+055826, WVFS J1537+0600, WVFSCC J153738+055900, [SLK2004] 1156,