ocr: Local galaxy group The inajority uf galaxies form groups held lugether by gravily. Some groups are really garganman in size. e.g.: groups in Virgo and Berenice's Ilair constellations feature thousands of galaxies stretched over some 20 million light years. Smaller galaxy groups do exist, an example is our OWTI galaxy the Milky Way. This group, calledLocal Group, comprises some 30 galaxies stretched over some 5 million light years. The most famous galaxies of the Local Group are Milky Way, Andromeda, and M33 galaxy in the Triangulum constellation. Ihe groups themsclyes fonn less thick groups, c ...