VizieR

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

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/AJ/129/2542
  BL Lac from SDSS (Collinge+, 2005)
ReadMe+ftp
2005AJ....129.2542C
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/129/2542/table5Potential radio-weak BL Lac candidates (27 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. (meta.record)
  SDSS (char) SDSS designation (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  n_SDSS (char) [*] *: SDSS data using DR2 reductions were not available for the object (Note G1)   (meta.note)
  Morph (char) [pr] Optical morphology (Note G2)   (src.class.starGalaxy)
  l_z (char) [≥ ] Limit flag on z (meta.code.error;src.redshift)
  z  (n) Redshift (src.redshift)
  u_z (char) [?] Uncertainty flag on z (meta.code.error;src.redshift)
  pm mas/yr (n) Proper motion (pos.pm)
  u_pm (char) [?] Uncertainty flag on pm (meta.code.error)
  l_alphaOX (char) Limit flag on alphaOX (meta.code.error)
  alphaOX  Spectral index between optical and X-ray (spect.index)
  l_alphaRO (char) Limit flag on alphaRO (meta.code.error)
  alphaRO  (n) Spectral index between radio and optical (spect.index)
  l_logL5GHz (char) Limit flag on logL5GHz (meta.code.error)
  logL5GHz [10-7W/Hz](n) Luminosity at 5GHz (phys.luminosity;em.radio.3-6GHz)
  SDSSdata  Display the SDSS data for this object (meta.ref.url)
  _RA deg (i) Position derived from SDSS name (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Position derived from SDSS name (declination part) (pos.eq.dec;meta.main)

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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