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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

  MgII line vs 3000Å continuum analysis in 68 QSOs (Zhu+, 2017)
Post annotation
1.J/ApJ/843/30/qsosList of unique quasars; table added by CDS (69 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)
  Ns  (n)Number of spectra for this quasar (meta.number)
  SDSS (char) (i) SDSS object name ( (;meta.main)
  z   [0.6/1.5] Improved quasar redshift from SDSS DR7Q and DR12Q (as in table 1) (src.redshift)
  DR12Q  (n)Display data from the SDSS quasar catalog -DR12 (VII/279) within 1" (meta.ref.url)
  DR7+DR12  Display data from the SDSS photometric catalog -DR7 (II/294) and -DR12 (V/147) within 0.5" (meta.ref.url)
  Sloan  Display the online SDSS data for the nearest object (meta.ref.url)
  SimbadName (char) Designation understandable by the Simbad data-base (
  NED  ask the NED data-base about this object (meta.ref.url)
  _RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (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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