Object NGC 4644B is located exactly in the center of the picture.
NGC 4644B - galaxy in the constellation Ursae Majoris Type: Sc - spiral galaxy The angular dimensions: 0.90'x0.2' magnitude: V=15.1m; B=15.8m The surface brightness: 13.1 mag/arcmin2 Coordinates for epoch J2000: Ra= 12h42m52.8s; Dec= 55°8'44" redshift (z): 0.016039 The distance from the Sun to NGC 4644B: based on the amount of redshift (z) - 67.7 Mpc; Other names of the object NGC 4644B : PGC 42725, MCG 9-21-32, KCPG 352B
In this version of the NGC catalog used by NASA imagery, ngcicproject.org and other sources.
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