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Groups and clusters of galaxies - InfoSearchPoint.com (Site not responding. Last check: 2007-11-03) |
 | | The large edge-on spiral, the fuzzy elliptical galaxy immediately to its right, and the spiral near the top of the image are members of the group, while the small spiral galaxy exactly in the middle is a more distant background galaxy. |
 | | Groups of galaxies are the smallest aggregates of galaxies. |
 | | Groups, clusters and some isolated galaxies form even larger structures, the superclusters. |
| www.infosearchpoint.com /display/Groups_and_clusters_of_galaxies (501 words) |