7087A VII/87A Data on 1889 Abell's clusters of galaxies A A Leir S van den Bergh Astrophys. J. Suppl. Ser. 34 381 1977 1977ApJS...34..381L VII/110A : (1989 version of Abell's Catalogue) Clusters, galaxy Galaxy catalogs 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

Abell Abell cluster number --- BMclass Bautz-Morgan class number=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. --- u_BMclass Uncertainty symbol (:) on BMclass --- AppRadius Apparent cluster radius on the red plate of the Palomar Sky Survey number=2 1 mm = 67.14" mm MajAxis Apparent major axis of the brightest cluster member number=2 1 mm = 67.14" mm MinAxis Apparent minor axis of the brightest cluster member number=2 1 mm = 67.14" mm rmag Photo-red magnitude of the brightest cluster member corrected for absorption. mag Francois Ochsenbein CDS 1995Jul21 UNKNOWN UNKNOWN * 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 VII_87A.xml