Object name: ARP029
Arp 29 is far better known as NGC 6946, the Fireworks Galaxy. This is because it is undergoing massive star formation and close enough that we can easily resolve many of the HII regions as well as a massive star cluster. The cluster is well resolved in the upper left corner of the Gemini North image. http://antwrp.gsfc.nasa.gov/apod/ap050125.html My image scale and seeing weren't sufficient to fully resolve it so only a few of the stars show with the rest forming what appears to be a blue reflection nebula. Note the Gemini image has south up while mine is north up. Another reason for its common name is all the supernova that have been seen blowing in it. The last was in 2008. NED list 9 known supernovae in this galaxy; SN 1917A, N 1939C, SN 1948B, SN 1968D, SN 1969P, SN 1980K, SN 2002hh, SN 2004et and SN 2008S. 27 supernova remnants are also known in this galaxy according to NED.
Related Designation(s):11HUGS 410, 2MASX J20345233+6009132, 2XMM J203452.4+600912, 2XMMp J203452.4+600912, 87GB 203349.0+595856, 87GB[BWE91] 2033+5958, 8C 2033+599, ARP 029, ARP029, CGCG 2033.8+5959, CGCG 304-006, CXO J203452.3+600914, CXO J203452.33+600914.3, Fireworks, FVW G095.5+11.5, HDCE 1123 NED001, IRAS 20338+5958, IRAS F20338+5958, LDCE 1412 NED003, MCG +10-29-006, NGC 6946, NGC 6946:[FT87] 1, NGC 6946:[L2011a] X0021, NGC 6946:[LB2005] X01, NGC 6946:[RW2000] X-06, NVSS J203452+600916, PGC 065001, RGB J2034+601, RX J2034.9+6010, UGC 11597, UZC J203452.8+600911, [HRT2007] J203452+600927, [SGT2004] J203452.30+600911.7 , [SPB93] 263, [WB92] 2033+5958,