VizieR

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VizieR

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J/ApJ/837/130/table1 Collinder 261 Chandra sources & optical counterparts (Vats+, 2017)
Catalog of Chandra sources in Cr 261 (151 rows)
  recno=4
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ColumnValue  Explain   (UCD)
_RAJ200012 39 02.87567 "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)
_DEJ2000-68 22 28.5130 "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 36 01.82524 "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)
_DEB1950-68 05 59.5833 "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)
_Glon301.78551895 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-05.53042144 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)
4recno 4  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Seq 4  (i) [1/151] Running sequence number (Note G1)   (meta.id;meta.main)
f_Seq    [d] Flag on Seq (Note 1)   (meta.code)
CXOU123902.9-682228  Official IAU identifier (HHMMSS.s+DDMMSS; J2000) (meta.id)
RAJ2000189.761982 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000-68.374587 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
ePos 0.53 arcsec [0.3/8] The 95% confidence radius (Note 2)   (phys.angSize)
theta 5.35 arcmin [0.2/11] Angular offset (Note 3)   (pos;arith.diff)
CT116 ct [3/473] The 0.3-7keV net counts extracted (phot.count;em.X-ray)
e_CT11 ct [2/22] The 1σ uncertainty in CT (stat.error)
l_CS   Limit flag on CS (meta.code.error)
CS 70.0 ct [0/226] The 0.3-2keV net counts extracted (phot.count;em.X-ray)
e_CS 8 ct [1/15] The 1σ uncertainty in CS (stat.error)
FXu 29.00 10-15mW/m2 [0.5/100] Unabsorbed 0.3-7keV X-ray flux (Note 4)   (phot.flux;em.X-ray)
E50 1.74 keV [0.7/6] Median energy (em.energy)
e_E50 0.09 keV [0.06/2] The 1σ uncertainty in E50 (stat.error)
Match+  Optical counterpart match? (+ = present; - = absent; see table 2) (meta.code)

W16 1  Display data from Wang+, 2016, J/ApJS/224/40, within 1" (meta.ref.url)
Simbad[VV2017] 4  ask the Simbad data-base about this object (meta.ref.url)
  
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