harmonicaman - The Great Attractor is not the center of gravity of our local group, as you posted - and there is plenty there!<br /><br />Scientific American, 10/98, in an article entitled “Galaxies behind the Milky Way,” reports on the recent discoveries of galaxies, super clusters and the Great Attractor:<br /><br />“Somewhere behind the disk, for example, are crucial parts of the two biggest structures in the nearby universe: the Perseus-Pisces supercluster of galaxies and the “Great Attractor,” a gargantuan agglomeration of matter whose existence has been inferred from the motions of thousands of galaxies through space.” - “Scientific American,” 10/98, p. 52<br /><br />[The article also discusses discovery of a 180 degree asymmetry in the cosmic microwave background radiation, known as the dipole - way off thread theme but immensely interesting]<br /><br />Back on the Great Attractor, Sciam has a (light + x-ray) photo of it with this caption:<br /><br />“CORE OF “GREAT ATTRACTOR” has been identified as galaxy cluster Abell 3627. It appears both in a visible-light image (background) and in x-ray observations (contours). Over 100 galaxies show up in this negative image; most of the dots are stars in our own galaxy.” - Ibid.<br /><br />Note that this core area of the Great Attractor has more galaxies than does the local group!<br /><br />“One research group, later referred to as the Seven Samurai, used the motions of hundreds of galaxies to deduce the existence of the Great Attractor about 200 million light-years away [see “The Large-Scale Streaming of Galaxies,” by Alan Dressler; Scientific American, September 1987]. The Local Group seems to be caught in a cosmic tug of war between the Great Attractor and the equally distant Perseus-Pisces supercluster, which is on the opposite side of the sky.” - Ibid., pp. 53,54.