Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/catalogs/7/7117/

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IMPORTANT NOTICE:

In August 1993, this catalog was superseded by catalog 7158. See:
/catalogs/7/7158/ .

If you still wish to access this catalog, go to:
ftp://adc.astro.umd.edu/pub/adc/superseded/7/7117/ .

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The following is an abbreviated "ReadMe" document that describes this ADC catalog.
Superseded  New Optical Cat of Quasi-Stellar Objects (Hewitt, Burbidge 1989)
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A New Optical Catalog of Quasi-Stellar Objects
    Hewitt A., Burbidge G.
    <ApJS, 69, 1 (1989)>
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ADC_Keywords: BL Lac objects ; QSOs

Description:
   The catalog is a compilation of data and information for optical
   quasistellar and BL Lacertae objects complete to June 1988.  It is an
   updated version of the third edition of the compilation prepared and
   published by the same authors in 1987.  The present version of the catalog
   contains 4296 QSOs and 87 BL Lacertae objects.  Data included are
   coordinate designations, other names, equatorial coordinates (B1950.0),
   apparent magnitudes, B-V, U-B, emission and absorption redshifts, emission
   lines, references, and notes.
  
References:
   Hewitt, A., and Burbidge, G. 1987, ApJS, 63, 1

See also:
   Superseded by catalog 7158 in August 1993:

   7158 : Revised and Updated Cat of QSOs (Hewitt, Burbidge 1993)
   at URL ftp://adc.astro.umd.edu/pub/adc/archives/catalogs/7/7158


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