Originally Posted by Squink

But if that were the case, we could approximate the LARGE spherical surface of the explosion with a tangent plane, and upon that plane all the galaxies would be moving away from the center of the sphere at roughly the same velocity, and have little or no recessional velocity with respect to each other. In other words, the observed redshifts of galaxies would depend strongly on their position within the sphere of the heavens. If the center of the explosion happened to be located in the direction of the line through the NS poles of the earth, then galaxies along the equator would show little redshift, with more northern or southern galaxies exhibiting a larger redshift as a function of distance. That?s not the case.