R.J. Mitchell discovered NGC 4607 on 24 Apr 1854 while observing NGC 4606 with LdR's 72". He noted "about 3' or 4' following there is also a F lenticular R, E np sf." The NGC RA is 0.2 min east of UGC 7843. Mitchell's note was not included in the 1861 monograph (only the 1880 publication) so NGC 4607 was not included in the GC and Dreyer missed it while compiling the GC Supplement.

300/350mm - 13.1" (5/14/83): extremely faint, edge-on N-S, low surface brightness, requires averted. Close following NGC 4606.

13.1" (4/16/83): extremely faint, near visual threshold, very elongated N-S, low surface brightness.

400/500mm - 17.5" (4/25/87): extremely faint, edge-on streak N-S, low even surface brightness. Located 3.8' ESE of much brighter NGC 4606.

Notes by Steve Gottlieb