NGC 4256 is an edge-on Sb galaxy that is not visibly disturbed in the optical.
There are five relatively faint cataloged galaxies at a comparable optical
redshift within 15^'^ of NGC 4256. Their separations range from 0.4^'^ (~4 kpc)
to 14^'^ (~153 kpc) from NGC 4256. None of these neighboring galaxies were
detected in H I.
The H I gas flux of NGC 4256 is the lowest among all of the galaxies in our
ensemble control sample, and hence the corresponding signal-to-noise ratio of
the H I map for this galaxy is the poorest. At a spatial resolution of ~20 kpc,
the H I disk of NGC 4256 appears to be symmetric both spatially and
kinematically with no evidence for perturbations. The same also is true at a
spatial resolution of ~10 kpc (Fig. 14).
April 12/13, 1948
The print of NGC 4256 here is made from
an excellent Mount Wilson 60-inch plate in this
high-declination position, denied to the Mount
Wilson 100-inch because of the particular
configuration of its mounting.
Except for the slightly smaller bulge, the
morphology of NGC 4256 is nearly identical to
that of NGC 4216 on the preceding panel and
NGC 3717 on this panel.
SA(s)b: (de Vaucouleurs)
Companion 2.0, 188, 0.4 x 0.1
Small, bright nucleus in a bright bulge. Strong dark lane on one side. Very
similar to NGC 5746.
Error in Dec in H.A., 88, 2.