The Intrinsic Flattening of e, so, and Spiral Galaxies as Related to .
They were not included in his early classification system (Hubble 1926). .. a better approximation would be two concentric ellipsoids of different flattening, one . Table 1 lists the absolute frequencies of E, SO, SBO, Sa, Sb, and Sc galaxies . and spirals by ellipsoids of revolution is an approximation of the first order only.
The Distribution, Classification, and Color Evolution of Galaxies .
Apr 26, 2012 . Table of Contents ... spirals have different positions in the four dimensional SDSS color space. .. The Third Sloan Digital Sky Survey (SDSS III) is the third phase of the . SDSS III's first data release, Data Release 8 (DR8) was made .. which is an imaginary sphere of arbitrarily large radius, concentric.Get Price