We compiled an all-sky catalog of 451 nearby galaxies , each having an individual distance estimate D \mathrel { \hbox { \hbox to 0.0 pt { \hbox { \lower 4.0 pt \hbox { $ \sim$ } } } \hbox { $ < $ } } } 10 Mpc or the radial velocity V _ { LG } < 550 km s ^ { -1 } .
The catalog contains data on basic optical and HI properties of the galaxies : their diameters , absolute magnitudes , morphological types , optical and HI surface brightnesses , rotational velocities , indicative mass-to-luminosity and HI mass-to-luminosity ratios , as well as a so-called ” tidal index ” , which quantifies the galaxy environment .
We expect the catalog completeness to be \sim 75 % within 8 Mpc .
About 85 % of the Local volume population are dwarf ( dIrr , dIm , dSph ) galaxies with M _ { B } > -17.0 , which contribute about 4 % to the local luminosity density , and \sim ( 10 - 16 ) % to the local HI mass density .

We found that the mean local barion density \Omega _ { b } ( < 8 Mpc ) = 2.3 % consists of only a half of the global barion density , \Omega _ { b } = ( 4.7 \pm 0.6 ) % ( Spergel et al .
2003 ) .
The mean-square pairwise difference of radial velocities is about 100 km s ^ { -1 } for spatial separations within 1 Mpc , increasing to \sim 300 km s ^ { -1 } on a scale of \sim 3 Mpc .