VizieR

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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
VII/158
  Revised and Updated Catalog of Quasi-stellar Objects (Hewitt+ 1993)
ReadMe+ftp
1993ApJS...87..451H
Similar Catalogs
Post annotation 		img(gal)
1.VII/158/table1The catalogue (22484 rows)

Simple ConstraintList Of Constraints
 
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. ((unassigned))
  M  (n)1 for the rows belonging to the original table 1 (main description of the QSO) ((unassigned))
  CooDes (char) Designation based on 1950 Coordinates (Note 1)   ((unassigned);(unassigned))
  RA1950 "h:m:s" Right Ascension 1950 (Note 1)   ((unassigned);(unassigned))
  DE1950 "d:m:s" Declination 1950 (Note 1)   ((unassigned);(unassigned))
  BLLac (char) [B] "B" indicates a BL Lac object (Note 1)   ((unassigned))
  Sel (char) [RXSVCO +] Selection technique(s) (Note 2)   ((unassigned))
  Id (char) Other name ((unassigned))
  V mag (n) Apparent magnitude; often only mpg ((unassigned);(unassigned))
  var (char) [*] * indicates a variability ((unassigned))
  B-V mag (n) B-V ((unassigned);(unassigned);(unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  U-B mag (n) U-B ((unassigned);(unassigned);(unassigned))
  z(em)  (n) Emission redshift ((unassigned))
  u_z(em) (char) [)] Uncertainty flag on z(em) ((unassigned))
  n_z(em) (char) [*+] Note on z(em) (Note 3)   ((unassigned))
  Element (char) Emission line on which the redshift is based (element name) ((unassigned);(unassigned))
  Wl 0.1nm (n) Wavelength of Emission element (Angstroem) ((unassigned))
  z(abs)  (n) Absorption redshift ((unassigned))
  r_Id  (n) Reference for identification ((unassigned);(unassigned))
  r_z(em)  (n) Reference for emission redshift ((unassigned);(unassigned))
  ref_b (char) [b*] Addition to r_z(em) (Note 5)   ((unassigned))
  r_var  (n) Reference for variability ((unassigned);(unassigned))
  r_Sel  (n) Reference for Radio ((unassigned);(unassigned))
  r_z(abs)  (n) Reference for absorption redshift ((unassigned);(unassigned))
  Notes (char) Notes (Note 4)   ((unassigned))
  _RA.icrs "h:m:s" (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) ((unassigned))
  _DE.icrs "d:m:s" (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) ((unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****Bad db number: -1
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****Bad db number: -1
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****db1_relink(0): connection was not opened
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****Bad db number: -1
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****db1_relink(0): connection was not opened
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****Bad db number: -1
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****db1_relink(0): connection was not opened
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****Bad db number: -1
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****db1_relink(0): connection was not opened
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****Bad db number: -1
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****db1_relink(0): connection was not opened
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****Bad db number: -1
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If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR2004083.err (2026-08-12T21:23:02)
-3
-source=VII/158/table1
-ref=VIZ6a7ce4361e9473
elapse time 0
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