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VII/248
 Quasars and Active Galactic Nuclei (12th Ed.) (Veron+ 2006) This catalogue is obsoleted by VII/258
Post annotation
img(gal)
1.VII/248/vv06(c)Quasars (Mv←23), BL Lac and AGNs(Mv>-23) (108080 rows)
2.VII/248/rejected(c)Rejected quasars (141 rows)
3.VII/248/refsReferences to QSOs, BL Lac, AGN and rejected (2477 rows)
4.VII/248/table2List of gravitationally lensed quasars (69 rows)
5.VII/248/table3List of quasar pairs (38 rows)
6.VII/248/ref2References to table2 and table3 (88 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)Cl (char) Class, as Q (quasar, Mv←23), B (BL Lac) and A (Active galaxy nucleus, Mv>-23) (src.class)
  (1+2)nR (char) [*] '*' if not detected in radio (Note 1)   (meta.code)
  (1+2+4+5)Name (char) Most common name of the object (meta.id)
  (1+2)RAJ2000 "h:m:s" Right Ascension J2000 (see also n_RAh) (pos.eq.ra;meta.main)
  (1+2)DEJ2000 "d:m:s" Declination J2000 (pos.eq.dec;meta.main)
  (1+2)n_RAh (char) [AOR] Approximative/Optical/Radio position (Note 2)   (meta.note)
  (1)F6cm Jy (n) 6cm (5GHz) flux (phot.flux.density;em.radio.3-6GHz)
  (1)r_F6cm  (n) [1,2477] Reference of 6cm Flux (meta.bib)
  (1)F20cm Jy (n) 20cm (1.4GHz) flux (Jy) (phot.flux.density;em.radio.750-1500MHz)
  (1)r_F20cm  (n) [1,2477] Reference of 20cm flux (meta.bib)

ALL cols
    
(n) indicates a possible blank or NULL column  
  (1)l_z (char) [>*] limit or method flag on z (Note 4)   (meta.code.error;src.redshift)
  (1+2+5)z  (n) redshift (src.redshift)
  (1+2)Sp (char) [S0-9?HPQBLbhin. ] Spectrum classification (Note 3)   (src.class)
  (1+2)n_Vmag (char) [*BRIJKO] Photographic(*), blue(B), red(R), infra-red (I J K) or photographic O- or J- plates(O) (meta.note)
  (1+2)Vmag mag (n) magnitude, V or other (see n_Vmag) (phot.mag;em.opt.V)
  (1+2)B-V mag (n) colour index (phot.color;em.opt.B;em.opt.V)
  (1+2)U-B mag (n) colour index (phot.color;em.opt.U;em.opt.B)
  (1)Mabs mag (n) Absolute magnitude (phys.magAbs)
  (1+2)FC  (n) [1,2477] Reference of the Finding Chart (meta.bib)
   (1+2)r_Vmag  (n) [1,2477] Reference of the Photometry (meta.bib)
  (1)r_z  (n) [1,2477] Reference of the redshift (meta.bib)
  (2)n_z (char) [*] '*' for z measured by slitless spectroscopy (meta.note)
  (2)r_Sp  (n) [1,2477] Reference of Sp (meta.bib)

ALL cols
    
(n) indicates a possible blank or NULL column  
  (2)Sp2 (char) [QGH2*? ] New classification (src.class)
  (2)r_Sp2  (n) [1,2477] Reference of New classification (meta.bib)
  (2)RA1950 "h:m:s" Right Ascension B1950 (pos.eq.ra)
  (2)DE1950 "d:m:s" Declination B1950 (pos.eq.dec)
  (3)RefNo   [1,2477] Reference Number (meta.bib)
  (3)BibCode (char) The 19-digit bibcode (Note)   (meta.bib.bibcode)
  (3)Text (char) Text of reference (meta.note)
  (4+5)Bname (char) QSO name, based on 1950 position (meta.id)
  (4)zq  redshift of Quasar (src.redshift)
  (4)zlens  (n) Redshift of lens (src.redshift)
  (4+5)Sep arcsec (n) Separation between the images (pos.angDistance)
  (4+5)Refs (char) References detailed in table ref2.dat (meta.bib)
  (6)Ref2  Reference number used in table2 and table3 (meta.bib)

ALL cols
    
(n) indicates a possible blank or NULL column  
  (6)ref  (n) Reference number in file "refs.dat" (meta.id;meta.main)
  (6)bibCode (char) 19-digit "bibcode" used by ADS, NED and SIMBAD (meta.bib.bibcode)
  (6)Authors (char) First author(s) (meta.bib.author)

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