VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

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/A+A/495/691
  Multifrequency catalogue of blazars, Roma-BZCAT (Massaro+, 2009)
ReadMe+ftp
2009A&A...495..691M
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/495/691/bzcat4Multi-frequency catalogue of blazars (Roma-BZCAT) Version 4.1.1 (2012-August) (3149 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);phys.veloc.orbital;arith.diff;phys.veloc)
  Seq   [1-3419] Sequential number ((unassigned);(unassigned);(unassigned);phys.veloc)
  Name (char) Source name (based on J2000 position) ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith)
  RAJ2000 "h:m:s" Right ascension (J2000.0) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  DEJ2000 "d:m:s" Declination (J2000.0) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  z  Redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  u_z (char) [ >?] Uncertainty flag on Redshift ((unassigned);(unassigned);(unassigned);pos.galactic.lon;pos.parallax;meta.main)
  Rmag mag (n) R-band magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  Class (char) Source classification (Note G1)   ((unassigned);(unassigned);(unassigned);phys.atmol.sweight;meta.main)
  F1.4 mJy Radio flux 1.4GHz (from NVSS or SUMSS) ((unassigned);phys.veloc.orbital;arith.diff;phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  F143 mJy Radio flux 143GHz ((unassigned);phys.veloc.orbital;arith.diff;phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  FX fW/m2 X-ray flux 0.1-2.4keV (in 10–12erg/cm2/s) ((unassigned);(unassigned);(unassigned);meta.abstract;(unassigned);(unassigned))
  Fgam ph/cm2/s {gamma}-ray flux 1-100GeV (Fermi) ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  Simbad  ask the Simbad data-base about this object ((unassigned);phys.veloc.orbital;arith.diff;pos.geocentric)

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:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846446758 Where phase=3 and catid=34950691
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR288595.err (2026-10-27T20:05:57)
-3
-source=J/A+A/495/691/bzcat4
-ref=VIZ6ae1042546753
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