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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

  
J/ApJ/537/101
  Optical Study for blazars. I. (Fan+, 2000)
timeSerie
Post annotation
img(gal)
1.J/ApJ/537/101/objects(c)Positions (from Simbad) (29 rows)
2.J/ApJ/537/101/table2Optical observations of 29 radio-selected BL Lacertae objects (5961 rows)
3.J/ApJ/537/101/refsReferences (163 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (1)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1)LC (char) Plot of the photometric data (meta.ref.url)
   (1+2)Name (char) (i) Object name (meta.id;meta.main)
  (1)RAJ2000 "h:m:s" (i) Simbad Right ascension (J2000) (pos.eq.ra;meta.main)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)Simbad (char) ask the Simbad data-base about this object
  (1)SName (char) Simbad name (meta.id)
  (2)Bmag mag (n) B band magnitude (phot.mag;em.opt.B)
  (2)e_Bmag mag (n) Error in Bmag (stat.error;phot.mag;em.opt.B)
  (2)e_Imag mag (n) Error in Imag (stat.error;phot.mag;em.opt.I)
  (2)e_Rmag mag (n) Error in Rmag (stat.error;phot.mag;em.opt.R)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)e_Umag mag (n) Error in Umag (stat.error;phot.mag;em.opt.U)
  (2)e_Vmag mag (n) Error in Vmag (stat.error;phot.mag;em.opt.V)
  (2)HJD d Julian date of observation (time.epoch)
  (2)Imag mag (n) I band magnitude (phot.mag;em.opt.I)
  (2)Rmag mag (n) R band magnitude (phot.mag;em.opt.R)
  (2)r_Name (char) References for the observations (in refs.dat file) (meta.ref;pos.frame)
  (2)Umag mag (n) U band magnitude (phot.mag;em.opt.U)
  (2)Vmag mag (n) V band magnitude (phot.mag;em.opt.V)
  (3)Aut (char) Author's name (meta.bib.author)
  (3)bibCode (char) BibCode (meta.bib.bibcode)
  (3)Com (char) Comments (meta.note)
  (3)Ref (char) Reference code (meta.note)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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