NED Abstract 
Copyright by American Astronomical Society.
Reproduced by permission

1989ApJS...70....1A
 
                  A CATALOG OF RICH CLUSTERS OF GALAXIES
 
                              GEORGE O. ABELL
       Department of Astronomy, University of California, Los Angeles
 
                          HAROLD G. CORWIN, JR.
 McDonald Observatory and Astronomy Department, University of Texas at
Austin
 
                                  AND
 
                            RONALD P. OLOWIN
         Department of Physics and Astronomy, University of Oklahoma;
  and Department of Mathematical Sciences, Saint Mary's College of
California
                 Received 1988 May 31; accepted 1988 July 19
 
                                 ABSTRACT
 
  This is an all-sky catalog of 4073 rich clusters of galaxies, each having
at least 30 members within the magnitude range m_3_ to m_3_ + 2 (m_3_ is
the magnitude of the third brightest cluster member) and each with a
nominal redshift less than 0.2. The southern data have been collected from
a survey of UK 1.2 m Schmidt telescope IIIa-J plates and films and have
been reduced to the systems defined by the northern data previously
published by G. O. Abell. A revised northern catalog, including
Bautz-Morgan types and redshifts where known, is also included.
 
Subject headings: galaxies: clustering - galaxies: redshifts - galaxies:
structure