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VizieR

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J/A+A/616/A97/dr7b SDSS QSO DR7 and DR9 (D'Isanto+, 2018)
SDSS object IDs and coordinates of the quasars for experiment DR7b (97041 rows)
  recno=62991
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ColumnValue  Explain   (UCD)
_RAJ200012 30 59.7361872 "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+35 45 42.805944 "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 28 32.2338141 "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+36 02 16.177906 "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)
_Glon148.4256341581 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 80.3320188338 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)
62991recno 62991  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

objID587739304754872391  SDSS DR7 objID (meta.id)
RAJ2000187.74890078 deg (i) Right ascension (J2000.0) (pos.eq.ra;meta.main)
DEJ2000 35.76189054 deg (i) Declination (J2000.0) (pos.eq.dec;meta.main)

SDSS-DR7DR7  Display the SDSS data for this object (meta.ref.url)
  
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