NGC/IC Project Restoration Effort

===== NGC 4875 is one of three galaxies (NGC 4876 and NGC 4898 are the others) in the core of the Coma Cluster for which Bigourdan used a 12th magnitude comparison star. He labeled it simply "b"; we now call it Tyc 1995-1988-1. Not having a good position for the star, he took the unusual (for him) step of measuring its position with respect to HD 112887. Unfortunately, he made some mistake in reducing its position, so the resulting positions for the three galaxies (in his Tables 1 and 2 of "new nebulae" in the introduction to his observations) are wrong. They are, of course, much more nearly correct when the correct position for the comparison star is used. Curiously, he used the correct position for the same star to measure NGC 4886 and NGC 4889, so the reduced positions for those two galaxies are OK.

===== NGC 4875 18" (4/20/12): at 322x this member of the Coma cluster appeared very faint, very small, round, 15" diameter. Forms a similar pair with NGC 4876 1.5' ENE. IC 3973 lies 2.1' SW. Situated 3.1' S of NGC 4874 in the core of the Coma cluster. 17.5" (4/21/90): companion of NGC 4874 in the core of AGC 1656. Located 3.1' S of NGC 4874. Appears extremely faint and small, slightly elongated. Second of three and located between IC 3973 2.1' SW and NGC 4876 1.5' E. A mag 12 star is 2.7' NW.