Object name: NGC6239
NGC 6239 is a very disturbed spiral in Hercules. Redshift puts it about 42 million light-years distant but other measurements place it much further away ranging from 61 to 83 million light-years with a median value of 73 million I show in the annotated image. If the 42 million light-year figure is right then the main part of the galaxy (not including the loops to the east and plumes to the west is only 18,500 light years in diameter. That's pretty dinky. If the 83 million light-year figure is used then it is a more reasonable 37 million light-years in diameter, about the size of M33 for example. Thus I tend to think the larger Tully-fisher determined distances of 73 to 83 million light-years may be more accurate. It was discovered by William Herschel on April 12, 1788. It is in the second H400 program.
Related Designation(s):2MASS J16500504+4244234, 2MASX J16500502+4244234, 2MASXi J1650050+424423, AKARI J1650045+424422, ASK 118578.0, ASK 118579.0, CGCG 1648.5+4250, CGCG 224-105, CGCG 225-002, IRAS 16484+4249, IRAS F16485+4249, MCG +07-35-001, NGC 6239, NGC6239, NSA 167111, NVSS J165005+424422, PGC 059083, SDSS J165004.83+424422.9, SDSS J165004.86+424423.0, SDSS J165004.96+424422.5, SDSS J165004.98+424422.8, UGC 10577, UZC J165005.3+424422, [MGD2014] 1648.4+4249,