VizieR

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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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VII/273
  The Half Million Quasars (HMQ) catalogue (Flesch, 2015)
Post annotation
img(gal)
1.VII/273/hmq(c)The Half Million Quasars catalogue (510764 rows)
2.VII/273/refsReferences (2171 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)RAJ2000 deg (i) Right ascension (J2000) (Note 1)   (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) Declination (J2000) (Note 1)   (pos.eq.dec;meta.main)
  (1)Name (char) ID from the literature (meta.id;meta.main)
  (1)r_Name  (n) Reference for name, in refs.dat file (meta.ref;pos.frame)
  (1)Cl (char) [ABKQq] Classification of object (Note 2)   (src.class)
  (1)A (char) [2RX ] Summary of associations for object (Note 3)   (meta.code)
  (1)Rmag mag (n) Red optical magnitude (Note 4)   (phot.mag;em.opt.R)
  (1)Bmag mag (n) Blue optical magnitude (Note 4)   (phot.mag;em.opt.B)
  (1)Com (char) Comment on optical object (Note 5)   (meta.note;spect.dopplerVeloc.opt;em.opt)
  (1)R (char) [1nx-] Red optical PSF class (Note 6)   (src.class.starGalaxy)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)B (char) [1nx-] Blue optical PSF class (Note 6)   (src.class.starGalaxy)
  (1)z  (n) Redshift from the literature (Note 7)   (src.redshift)
  (1)r_z  (n) Reference for redshift, in refs.dat file (meta.ref;pos.frame)
  (1)XName (char) X-ray ID, if any (Note 9)   (meta.id.assoc)
  (1)RName (char) Radio ID, if any (Note 9)   (meta.id.assoc)
  (1)Lobe1 (char) Radio lobe ID or extra R/X ID, if any (Note 9)   (meta.id.assoc)
  (1)Lobe2 (char) Radio lobe ID or extra X-ray ID, if any (Note 9)   (meta.id.assoc)
  (2)Ref   [1/2171] Reference number (meta.id;meta.main)
  (2)NName  (n) Count of times used as a citation for the name. (excluding type 2) (Note 1)   (meta.number)
  (2)Nz  (n) Count of times used as a citation for the redshift. (excl. type 2) (Note 1)   (meta.number)
  (2)BibCode (char) BibCode (meta.bib.bibcode)
  (2)Details (char) Standard authors list, year, journal volume & page, and sometimes a brief description or website (meta.note)

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