Publications of the Astronomical Society of the Pacific
109: 345, 1997 April

           A Catalog and Atlas of Cataclysmic Variables-2nd Edition

                               RONALD A. DOWNES

           Space Telescope Science Institute, 3700 San Martin Drive,
                           Baltimore Maryland 21218
                       Electronic mail: downes@stsci.edu

                               RONALD F. WEBBINK

     Department of Astronomy, University of Illinois, 103 Astr. Building,
                 1002 W. Green Street, Urbana, Illinois 61801
                    Electronic mail: webbink@astro.uiuc.edu

                               MICHAEL M. SHARA

           Space Telescope Science Institute, 3700 San Martin Drive,
                           Baltimore Maryland 21218
                       Electronic mail: shara@stsci.edu

     ABSTRACT.  We present a catalog of all 1020 known cataclysmic
     variables (CVs). This paper is a major update of the first edition of
     the catalog (Downes and Shara 1993, PASP, 105, 127), which contained
     coordinates (measured in the reference frame of the Hubble Space
     Telescope Guide Star Survey for the non-novae, and obtained from the
     literature for the novae), the variability type, the magnitude range,
     and references to both finding charts and spectroscopy. Also included
     in the catalog were finding charts for all dwarf novae, novalike
     variables, and objects classified only as cataclysmic variables known
     as of 1993; a similar catalog and atlas for novae has been published
     by Duerbeck (1987, SSRV, 45, 1). This updated edition includes 195 new
     objects (172 CVs and 23 non-CVs), revised identifications for 57
     objects, and revised information (classification and spectral
     references) when available. We also now include plate identification
     information for the coordinate measurements, a reference to the
     classification, proper motion information where appropriate, and a
     table showing the CVs observed by space-based observatories. This
     second edition is inclusive of the first edition, although only new or
     updated charts are presented.