VizieR

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VizieR

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J/other/RAA/19.29/kqcg Compilation of known QSOs for the Gaia mission (Liao+, 2019)
Known QSOs catalog for Gaia mission catalog (1842076 rows)
  recno=940464
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ColumnValue  Explain   (UCD)
_RAJ200012 28 16.4795280000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+31 06 05.688000000 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195012 25 47.4829017219 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+31 22 40.558928658 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon173.4052800285816 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat 83.5690532773356 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
940464recno 940464  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameJ122816.47+310605.6  Name (Note 1)   (meta.id;meta.main)
RAJ2000187.06866470000 deg (i) Right ascension (J2000.0) (Note 2)   (pos.eq.ra;meta.main)
DEJ2000 31.10158000000 deg (i) Declination (J2000.0) (Note 2)   (pos.eq.dec;meta.main)
e_RAJ20000.08440000000 arcsec Error in Right ascension (stat.error;pos.eq.ra)
e_DEJ20000.08800000000 arcsec Error in Declination (stat.error;pos.eq.dec)
z    Redshift (Note 3)   (src.redshift)
umag  mag u photographic magnitude (Note 4)   (phot.mag;em.opt.U)
gmag  mag g photographic magnitude (Note 4)   (phot.mag;em.opt.B)
rmag  mag r photographic magnitude (Note 4)   (phot.mag;em.opt.R)
imag  mag i photographic magnitude (Note 4)   (phot.mag;em.opt.I)
zmag  mag z photographic magnitude (Note 4)   (phot.mag;em.opt.I)
RefP-Q  Reference catalog (Note 5)   (meta.id;meta.table)
W1-W2 0.91 mag W1-W2 photographic magnitude (Note 6)   (phot.color;em.IR;em.IR)
W2-W3 3.10 mag W2-W3 photographic magnitude (Note 6)   (phot.color;em.IR;em.IR)
W1mag15.37 mag W1 photographic magnitude (Note 6)   (phot.mag;em.IR.3-4um)
  
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