Object name: NGC4102
NGC 4102 is a rather strange spiral galaxy in Ursa Major southwest of the bowl of the Big Dipper, not far from the far more well-known M109. It is about 50 million light-years away. I found little consensus on its distance. In fact, I found two different radial velocities giving two different results. Other techniques give even more results. All range in the 47 to 95 million light-year range. Most center around 50 to 60 million light-years. It was discovered by William Herschel on April 12, 1789. My log entry from the original H400 project made on May 4, 1984 using a 12.5" f/5 scope from the New Mexican badlands on a very good night says; "Bright nufleus, tilted spiral with some arm detail seen. About 12th magnitude."
Related Designation(s):2MASS J12062303+5242397, 2MASX J12062311+5242394, 2PBC J1206.2+5244, 6C B120352.4+525905, 87GB 120352.8+525943, 87GB[BWE91] 1203+5259, AKARI J1206228+524232, CGCG 1203.8+5300, CGCG 269-036, CXO J120622.9+524239, CXO J120622.98+524239.8, GB6 J1206+5242, HDCE 0706 NED035, IRAS 12038+5259, IRAS F12038+5259, LDCE 0867 NED073, LGG 258:[G93] 041, LQAC 181+052 007, MCG +09-20-094, NGC 4102, NGC 4102:[L2011a] X0001, NGC4102, NSA 161048, NVSS J120623+524240, PGC 038392, SDSS J120623.00+524239.7, SDSS J120623.74+524237.9, SWIFT J1206.2+5242, SWIFT J1206.2+5243, TXS 1203+529, UGC 07096, UMa Cluster:[PRL2014] U126, UZC J120623.0+524241, VLSS J1206.3+5242, [dML87] 651, [M98j] 170 NED37, [RHM2006] SFGs 140, [VCV2001] J120623.1+524239, [VCV2006] J120623.1+524239, [WB92] 1203+5259, [WMR2009] 087,