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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/A+A/428/149
  Hipparcos parallaxes of O stars (Schroeder+, 2004)
ReadMe+ftp
2004A&A...428..149S
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/428/149/table1Characteristics of the O star sample. (154 rows)

Simple ConstraintList Of Constraints
 
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)
  HD  HD number (meta.id;meta.main)
  SpType (char) MK spectral type (src.spType)
  r_SpType  Reference for SpType, when not Mason et al., 1998AJ....115..821M (meta.bib)
  plx mas Hipparcos parallax, corrected for interstellar extinction (AV) (pos.parallax)
  e_plx mas rms uncertainty on plx (stat.error;pos.parallax)
  AV mag Interstellar extinction (phys.absorption)
  VMAGH mag (n) Hipparcos absolute magnitude (phys.magAbs)
  VMAGSK mag Predicted absolute magnitude, derived from the spectral type according to the calibration of Schmidt-Kaler et al. (Note G1)   (phys.magAbs)
  HIP  Show the Hipparcos data (meta.ref.url)
  Simbad  ask the Simbad data-base about this object
  _RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)

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(n) indicates a possible blank or NULL column(i)indexed column
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