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J/A+AS/128/315
 BVRI photometry of blazars (Jia+ 1998)
Post annotation
  
1.J/A+AS/128/315/table1Observation for 8 Blazars (280 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) Object designation (meta.id;meta.main)
  Date "Y:M:D" (n)Date (time.epoch)
  JD d Heliocentric Julian date (time.epoch)
  mag mag magnitude in "Band" band (phot.mag;em.opt.B)
  e_mag mag rms uncertainty on mag (stat.error)
  Band (char) [BVRI] Observed band (meta.note)

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(n) indicates a possible blank or NULL column  
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