jcdenton- thanks- a picture worth 1,000 words.<br /><br />Another source ("The World of Science," 1991, Volume "The Universe," by Andromeda Oxford Ltd., pp. 6,7) has a variant illustration. It shows the local group as having a radius of 2.5 million ly (=5million ly diameter). The closest galaxies according to this source are Ursa minor and Draco. Then comes Leo 1 and Leo 2. I assume the Magellanic clouds are considered part of Milky Way already.<br /><br />After the Leo?s, (A is not noted) are Sculptor and Carina.<br /><br />Also, my source does not have Milky Way in the center of the local group. Rather, the center is empty and the closest to the center are:<br /><br />1. Sculptor - in the same direction from center as Milky Way, but closer to the center (Ursa Major and Draco are further from center (in the same direction from center as Milky Way) and are near Milky Way?s spiral arms; Leo 1 &2 are still further from center in the same direction.<br /><br />2. Fornx is also about as close to center, but about 80 degrees arc in direction difference.<br /><br />3. NGC 185 is slightly closer to center and nearly opposite in direction from center.<br /><br />Andromeda (=M31) is about the same distance from center (slightly closer), but in exactly the opposite direction.<br /><br />M33 is about the same distance from center as Leo 1 & 2, but nearly opposite in direction.<br /><br />Now, Andromeda is heading towards Milky Way - I was not aware that they were both rotating about the center of gravity of the local group.<br /><br />Gravitationally bound is one thing, revolving (spinning) is quite another matter - can anyone confirm this revolution - and where the center of revolution is?<br /><br />Interestingly., the same source puts Virgo at the center of the local supercluster, with a radius of 50 million ly. NGC 2997 is relatively close to Milky Way. IC 1613 is positioned differently, near Andromeda but further from Milky Way. Someone is wrong!<br /><br />Again, my research c