  Using photometry and spectroscopy of 144,609 galaxies from the Sloan Digital
Sky Survey, we present bivariate distributions of pairs of seven galaxy
properties: four optical colors, surface brightness, radial profile shape as
measured by the Sersic index, and absolute magnitude. In addition, we present
the dependence of local galaxy density (smoothed on 8 h^{-1} Mpc scales) on all
of these properties. Several classic, well-known relations among galaxy
properties are evident at extremely high signal-to-noise ratio: the color-color
relations of galaxies, the color-magnitude relations, the magnitude-surface
brightness relation, and the dependence of density on color and absolute
magnitude. We show that most of the i-band luminosity density in the universe
is in the absolute magnitude and surface brightness ranges used. Some of the
relationships between parameters, in particular the color--magnitude relations,
show stronger correlations for exponential galaxies and concentrated galaxies
taken separately than for all galaxies taken together. We provide a simple set
of fits of the dependence of galaxy properties on luminosity for these two sets
of galaxies.
