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Abell 1989 Rich Clusters of Galaxies query
Right Ascension and Declination can be specified either as colon-separated sexageismal (HH:MM:SS.ss +DD:MM:SS.ss) or decimal degrees.
If no limit is specified, all results in the given radius will be returned.
If both an object name and coordinates are entered, the given coordinates will be used for the query.
Batch mode input files should be one target per line, with lines of the form:
targetname RA Dec epoch Xsize Ysize
This service makes use of the VizieR catalogue access tool, created at the Centre de Données astronomiques de Strasbourg, France.