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VII/258
  Quasars and Active Galactic Nuclei (13th Ed.) (Veron+ 2010) Notice the change of cosmology compared to the previous editions (Ho=71km/s/Mpc)
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img(gal)
1.VII/258/table2List of gravitationally lensed quasars (88 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Name (char) QSO Name (meta.id;meta.main)
  Bname (char) QSO name, based on 1950 position (meta.id)
  zq  redshift of Quasar (src.redshift)
  zlens  (n) Redshift of lens (src.redshift)
  Sep arcsec (n) Separation between the images (pos.angDistance)
  Refs (char) References detailed in table ref2.dat (meta.ref;pos.frame)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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