Each star belonging to a cluster revolves around the cluster's common center of mass. (webbtelescope.org)
2: Common center for all expressions of fields and enumerations. (realestatethings.net)
In terms of procedure in constructing a view of religion, the demand for communicability will probably be satisfied best by approaching the description of each basic religious concept from a variety of directions, all of which converge on a common center. (religion-online.org)