The Coma supercluster - Analysis of Zwicky-Herzog cluster 16 in field 158

Abstract

Radial velocities for 50 of the 52 galaxies brighter than 15.1 mag within the boundaries of Zwicky-Herzog cluster 16 in field 158 are used to establish that the region is a composite of (1) part of the Coma I cloud of the Local Supercluster, (2) part of the supercluster of which the Coma cluster is a member, (3) the NGC 4169 group, and (4) other galaxies. The Coma supercluster is detected to a radial distance from the center of the Coma cluster of 14.2 deg (31.5 Mpc for H = 55 km/s per Mpc).