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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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  Galactic distribution of infrared dark clouds (Simon+, 2006)
Post annotation
1.J/ApJ/653/1325/ircdProperties of the infra-red dark clouds, including clouds with distinct velocity components along the line of sight (table 1 and 2 of paper) (313 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)
  MSXDC (char) MSXDC designation ( (;meta.main)
  m_MSXDC (char) a to for cloud components (meta.code.multip)
  GLON deg Galactic longitude (pos.galactic.lon)
  GLAT deg Galactic latitude (
  Vlsr km/s Local Standard of Rest (LSR) velocity (phys.veloc;pos.lsr)
  DV km/s Line width (spect.line.width)
  Dist kpc Kinematic distance (pos.distance;pos.heliocentric)
  Size pc Size for each of the IRDCs that have a morphological match to the 13CO emission (phys.size.diameter)
  Sint Integrated intensity of 13CO (phot.flux.density;
  N(H2) 10+21cm-2H2 column density (phys.columnDensity)
  MLTE solMass LTE mass (phys.mass)
  n(H2) cm-3 Average H2 density (phys.density)
  _RA.icrs deg (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  _DE.icrs deg (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)

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