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VizieR

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VII/285/gdr2ext Gaia DR2 quasar and galaxy classification (Bailer-Jones+, 2019)
GDR2 extragalactic catalogue (2690021 rows)
  recno=344361
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200015 05 45.4556075071 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2015.5 (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+14 23 25.509254659 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2015.5 (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)
_RAB195015 03 24.1177655650 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J2015.5 (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+14 34 59.613652546 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J2015.5 (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 17.6102724201485 deg Galactic longitude at Epoch=J2015.5 (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 56.2555759987079 deg Galactic latitude at Epoch=J2015.5 (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)
344361recno 344361  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

GDR21183459959032447872  Gaia-DR2 identification number (source_id) (meta.id;meta.main)
pqso 0.851427  Quasar probability (stat.fit.goodness)
pgal 0.025679  Galaxy probability (stat.fit.goodness)
RA_ICRS226.43939836461 deg (i) Gaia DR2 right ascension (ICRS) at Ep=2015.5 (added by CDS) (pos.eq.ra;meta.main)
DE_ICRS 14.39041923741 deg (i) Gaia DR2 declination (ICRS) at Ep=2015.5 (added by CDS) (pos.eq.dec;meta.main)

_RA.icrs226.43939836461 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+14.39041923741 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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