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VII/87A             Data on 1889 Abell's clusters of galaxies (Leir+ 1977)
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Data on 1889 Abell's rich clusters of galaxies
     Leir A.A., van den Bergh S.
    <Astrophys. J. Suppl. Ser. 34, 381 (1977)>
    =1977ApJS...34..381L
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ADC_Keywords: Clusters, galaxy ; Galaxy catalogs

Description:
    A sample of 1889 clusters from Abell's catalogue of Rich Clusters
    of Galaxies (1958, ApJS 3, 211) have been classified in the
    Bautz-Morgan system

See also:
    VII/110A    (1989 version of Abell's Catalogue)

File Summary:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
catalog         28       1889    Table 1 of the paper, cols 1,6,7,9-11
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Byte-by-byte Description of file: catalog
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   Bytes Format  Units   Label     Explanations
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   1-  4  I4     ---     Abell     Abell cluster number
   6-  8  F3.1   ---     BMclass   [1/3] Bautz-Morgan class (1)
       9  A1     ---     u_BMclass Uncertainty symbol (:) on BMclass
  11- 12  I2     mm      AppRadius Apparent cluster radius on the red plate
                                    of the Palomar Sky Survey (2)
  15- 18  F4.2   mm      MajAxis   Apparent major axis of the brightest
                                     cluster member (2)
  20- 23  F4.2   mm      MinAxis   Apparent minor axis of the brightest
                                     cluster member (2)
  25- 28  F4.1   mag     rmag      Photo-red magnitude of the brightest
                                    cluster member corrected for absorption.
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Note (1): The classification is written with arabic number, with
          1.5 = I-II and 2.5 = II-III.
    The classification is defined in Bautz L.P., Morgan W.W., 1970,
    ApJ 162, L149:
    Class  I = clusters containing a centrally located cD galaxy
          II = clusters where brightest galaxy or galaxies are
               intermediate in appearance between class cD and the
               Virgo-type giant ellipticals
         III = clusters containing no dominant galaxies.
Note (2): 1 mm = 67.14"
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Historical Notes:
  * March 1990: the BMclasses I-II and III were all coded as '3' (note
    from H. Andernach). The corrections have been made at NSSDC/ADC
    (version VII/87A)
  * 21-Jul-1995: Standard description added at CDS
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(End)                                     Francois Ochsenbein [CDS]  21-Jul-1995