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=1754309
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ColumnValue  Explain   (UCD)
_RAJ200018 11 10.6455840000 "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+49 52 12.043200000 "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)
_RAB195018 09 55.9878764681 "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+49 51 25.852730941 "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)
_Glon 77.6827107319404 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 26.6723511400590 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)
1754309recno 1754309  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameJ181110.64+495212.0  Name (Note 1)   (meta.id;meta.main)
RAJ2000272.79435660000 deg (i) Right ascension (J2000.0) (Note 2)   (pos.eq.ra;meta.main)
DEJ2000 49.87001200000 deg (i) Declination (J2000.0) (Note 2)   (pos.eq.dec;meta.main)
e_RAJ20000.04160000000 arcsec Error in Right ascension (stat.error;pos.eq.ra)
e_DEJ20000.04060000000 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  Reference catalog (Note 5)   (meta.id;meta.table)
W1-W2 1.08 mag W1-W2 photographic magnitude (Note 6)   (phot.color;em.IR;em.IR)
W2-W3 3.06 mag W2-W3 photographic magnitude (Note 6)   (phot.color;em.IR;em.IR)
W1mag13.83 mag W1 photographic magnitude (Note 6)   (phot.mag;em.IR.3-4um)
  
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