  We assemble a catalog of 15424 nearby galaxies within 50 Mpc with consistent
and homogenized mass, distance, and morphological type measurements. Our
catalog combines galaxies from HyperLeda, the NASA-Sloan Atlas, and the Catalog
of Local Volume Galaxies. Distances for the galaxies combine best-estimates for
flow-corrected redshift-based distances with redshift independent distances. We
also compile magnitude and color information for 11740 galaxies. We use the
galaxy colors to estimate masses by creating self-consistent color --
mass-to-light ratio relations in four bands; we also provide color
transformations of all colors into Sloan (g-i) by using galaxies with
overlapping color information. We compile morphology information for 13744
galaxies, and use galaxy color information to separate early and late-type
galaxies. This catalog is widely applicable for studies of nearby galaxies, and
placing these studies in the context of more distant galaxies. We present one
application here; a preliminary analysis of the nuclear X-ray activity of
galaxies. Out of 1506 galaxies within the sample that have available Chandra
X-ray observations, we find 291 have detected nuclear sources. Of the 291
existing Chandra detections, 249 have log(L$_{X}$)$>$38.3 and available stellar
mass estimates. We find that the X-ray active fractions in early-type galaxies
are higher than in late-type galaxies, especially for galaxy stellar masses
between 10$^9$ and 10$^{10.5}$ M$_\odot$. We show that these differences may be
due at least in part to the increased astrometric uncertainties in late-type
galaxies relative to early-types.
