VizieR

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VizieR

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J/MNRAS/437/1561/table2 DR 21 Chandra source catalogue (Rivilla+, 2014)
DR 21 Chandra source catalogue, with SDSS, UKIDSS and Spitzer counterparts (281 rows)
  Seq=192
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200020 39 00.5500 "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+42 24 35.000 "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)
_RAB195020 37 13.6742 "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+42 13 57.314 "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)
_Glon081.7442543 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 +0.5901668 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)

Seq192  (i) [1/281] DR21 X sequential number (meta.record)
RAJ200020 39 00.55 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+42 24 35.0 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
Counts 26 ct [2/320] X-ray counts (phot.count;em.X-ray)
logLX30.79 [10-7W] X-ray luminosity (not corrected from extinction) (phys.luminosity;em.X-ray)
SDSS   SDSS counterpart name (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
UKIDSS   UKIDSS counterpart name (JHHMMSS.ss+DDMMSS.s) (meta.id)
SSTCYGX   Spitzer-SSTCYGX counterpart name (JHHMMSS.ss+DDMMSS.s) (meta.id)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
  
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