VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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J/ApJS/155/257/table1 NBC Quasar Candidate Catalog (Richards+, 2004)
NBC Quasar Candidate Catalog (100563 rows)
  recno=1716
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200000 28 53.519760 "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)
_DEJ2000-00 05 29.35608 "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)
_RAB195000 26 19.782883 "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)
_DEB1950-00 22 04.15930 "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)
_Glon110.681916547 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-62.425787847 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)
1716recno 1716  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

[RNG2004] 1716  Unique catalog number (meta.id;meta.main)
Name002853.51-000529.3  The SDSS name (Note 1)   (meta.id)
RAJ2000007.2229990 deg (i) Right ascension in decimal degrees (J2000.0) (pos.eq.ra;meta.main)
DEJ2000-00.0914878 deg (i) Declination in decimal degrees (J2000.0) (pos.eq.dec;meta.main)
ID1-2662-20-3-331-81  SDSS Object ID string (Note 2)   (meta.id)
RPix 279.73 pix Row position of object in field (pos.cartesian;instr.det)
CPix1145.80 pix Column position of object in field (pos.cartesian;instr.det)
umag 20.857 mag PSF SDSS u asinh magnitude (Note 3)   (phot.mag;em.opt.U)
e_umag 0.077 mag Error in umag (stat.error;phot.mag;em.opt.U)
gmag20.643 mag PSF SDSS g asinh magnitude (Note 3)   (phot.mag;em.opt.B)
e_gmag 0.031 mag Error in gmag (stat.error;phot.mag;em.opt.B)
rmag20.753 mag PSF SDSS r asinh magnitude (Note 3)   (phot.mag;em.opt.R)
e_rmag 0.044 mag Error in rmag (stat.error;phot.mag;em.opt.R)
imag20.606 mag PSF SDSS i asinh magnitude (Note 3)   (phot.mag;em.opt.I)
e_imag 0.052 mag Error in imag (stat.error;phot.mag;em.opt.I)
zmag20.632 mag PSF SDSS z asinh magnitude (Note 3)   (phot.mag;em.opt.I)
e_zmag 0.185 mag Error in zmag (stat.error;phot.mag;em.opt.I)
Au 0.103 mag Galactic extinction in the u band (phys.absorption)
Ag 0.076 mag Galactic extinction in the g band (phys.absorption)
Ar 0.055 mag Galactic extinction in the r band (phys.absorption)
Ai 0.042 mag Galactic extinction in the i band (phys.absorption)
Az 0.030 mag Galactic extinction in the z band (phys.absorption)
QDen 1.079e+01  KDE (Kernel Density Estimator) quasar density (stat.fit.param)
SDen 1.073e-07  KDE (Kernel Density Estimator) star density (stat.fit.param)
z 0.575  Photometric redshift (src.redshift.phot)
e_z 0.40  Lower limit in z (stat.error;src.redshift)
E_z 0.75  Upper limit in z (stat.error;stat.max)
zProb 0.526  Photometric redshift range probability (stat.fit.goodness)
r_classU  Origin of class: 2QZ or release number (Note 4)   (meta.ref;pos.frame)
class   Previous catalog object classification (Note 4)   (meta.code.class;src.class;meta.table)
zPrev    Previous catalog object redshift (Note 5)   (src.redshift.phot)
S20cm  mJy 20cm flux density (Note 5)   (phot.flux.density;em.radio.750-1500MHz)
logX  [ct/s] Log RASS full-band count rate (Note 6)   (phot.count;em.X-ray)
pm  mas/yr Proper motion (Note 7)   (pos.pm)
  
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