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  Collinder 261 Chandra sources & optical counterparts (Vats+, 2017)
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1.J/ApJ/837/130/table2Optical Counterpart Properties (135 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Seq   [4/151] Sequence number (G1) (Note)   (;meta.main)
  OID (char) Optical identifier (Note 1)   (
  f_OID (char) [ac] Flag on OID (Note 2)   (meta.code)
  Dox arcsec [0.05/8] Distance between X-ray and its optical counterpart (pos.angDistance)
  Vmag mag [11.4/23.8] Johnson V band magnitude (phot.mag;em.opt.V)
  f_Vmag (char) [bd] Flag on Vmag (Note 2)   (meta.code)
  B-V mag (n) [0.5/2.1] The (B-V) color index (phot.color;em.opt.B;em.opt.V)
  f_B-V (char) [de] Flag on B-V (Note 2)   (meta.code)
  Var (char) Mazur+ (1995MNRAS.273...59M) short-period binary identifier; <Cl* Collinder 261 MKK VNN> in Simbad (
  Per d (n) [0.2/2.2] Period of short-period binary (time.period)
  f_Per (char) [?] Uncertainty flag on Per (meta.code)
  VType (char) Mazur+ (1995MNRAS.273...59M) variable type (src.class)
  LXu 10+23W [0.5/25.5] Unabsorbed 0.3-7keV X-ray luminosity (Note 3)   (phys.luminosity;em.X-ray)
  logR [-] [-4.8/0.3] Log ratio of X-ray to V band fluxes (Note 4)   (phot.flux;arith.ratio)
  Class (char) Classification (Note 5)   (src.class)

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