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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:

Target dimension:

Radius Box size

  NVSS and FIRST variable sources (Abrahamyan+, 2018)
Post annotation
1.J/other/A+C/25.176/table8Variable radio sources which have optical variability (2425 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)
  RAJ2000 deg (i) FIRST right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) FIRST declination (J2000) (pos.eq.dec;meta.main)
  B1 mag (n) [6/24.2] B1 (POSS1 BEST) magnitude (Note 1)   (phot.mag;meta.modelled)
  e_B1 mag (n) [0/4.6] B1 (POSS1 BEST error) magnitude (stat.error)
  R1 mag (n) [4.5/21.1] R1 (POSS1 BEST) magnitude (Note 1)   (phot.mag;meta.modelled)
  e_R1 mag (n) [0/4.5] R1 (POSS1 BEST error) magnitude (stat.error)
  B2 mag (n) [6.3/23.1] B2 (POSS2 BEST) magnitude (Note 1)   (phot.mag;meta.modelled)
  e_B2 mag (n) [0/2.5] B2 (POSS2 BEST error) magnitude (stat.error)
  R2 mag (n) [5.3/21] R2 (POSS2 BEST) magnitude (Note 1)   (phot.mag;meta.modelled)
  e_R2 mag (n) [0/4] R2 (POSS2 BEST error) magnitude (stat.error)
  del(B) mag (n) [-9.7/10.4] Difference variability ΔB (phot.mag;arith.diff)
  Br  (n) [0/326] Relative variability Br (src.var.amplitude)
  del(R) mag (n) [-16.6/11.6] Difference variability ΔR (phot.mag;arith.diff)
  Rr  (n) [0/220] Relative variability Rr (src.var.amplitude)
  Var  Variability category (Note 2)   (meta.code;src.var)
  USNOB1  Display data from the USNO-B1.0 catalog (I/284) within 3" (meta.ref.url)
  USNOA2  Display data from the USNO-A2.0 catalog (I/252) within 3" (meta.ref.url)
  GSC  Display data from the GSC2.3.2 catalog (I/305) within 3" (meta.ref.url)
  APM  Display data from the APM catalog (I/267) within 3" (meta.ref.url)

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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