The Extended Local Supercluster
  It has long been established but seldom noticed that we are in a region at
least 170 Mpc across in which different types of galaxies show different
degrees of alignment with the plane of the de Vaucouleurs Local Supercluster.
While clusters of galaxies and radio galaxies at redshifts less than 0.02 are
concentrated at low supergalactic latitudes, the most luminous galaxies in the
infrared, LIRGs, show little correlation with this plane. The most luminous
early-type galaxies are concentrated at low supergalactic latitudes, but
similarly luminous spirals are not noticeably so. The cross-correlations of the
positions of what might be termed field galaxies with positions of clusters and
LIRGs offer a measure of the situation. The mean density at distance 0.5 Mpc
from a LIRG is comparable to the mean density at that distance from a cluster
of galaxies, but the mean density 5 Mpc from a LIRG is well below the mean
density at that distance from a cluster and not much greater than the cosmic
mean density. Discussion of issues arising is brief.
