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J/A+AS/132/83
 BVRI photometry of 7 BL Lac objects (Bai+ 1998)
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1.J/A+AS/132/83/table2Photometric data of seven BL Lac objects (341 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number within the original table (starting from 1) (meta.record)
  Date "Y:M:D" (n)Observation date (time.epoch)
  JD d Julian Date (time.epoch)
  mag mag Magnitude (phot.mag;em.opt.V)
  e_mag mag One sigma uncertainty on mag (stat.error)
  Band (char) [BVRI] Filter used (meta.code;instr.filter)
  Object (char) Name of the object observed (meta.id;meta.main)

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

The following problems were encountered in this VizieR run:
**** -bg is an obsolete option
**** -bg is an obsolete option
**** -bg is an obsolete option
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR31404.err (2013-05-22T23:22:25)
-2
-source=J/A+AS/132/83
-ref=VIZ519d53317aac
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