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  Spectro. monitoring of HDE 245770 and X Per (Grundstrom+, 2007)
Post annotation
1.J/ApJ/660/1398/table1bX Per Hα measurements [timeSerie](plot) (49 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)
  Name (char) Star name (HDE 245770 or X Per) (;meta.main)
  HJD d Mid-exposure Heliocentric Julian Date (time.epoch)
  Phase  Orbital phase (Note 1)   (time.phase)
  EW 0.1nm Hα equivalent width (Note 2)   (spect.line.eqWidth;em.line.Halpha)
  RV km/s Radial velocity (Note 3)   (spect.dopplerVeloc;pos.heliocentric)
  RVv km/s (n) Violet component radial velocity (Note 4)   (spect.dopplerVeloc)
  RVr km/s (n) Red component radial velocity (Note 4)   (spect.dopplerVeloc)
  EWv/EWr  (n) The Violet/Red equivalent width ratio (spect.line.eqWidth)
  Iv/Ir  (n) The Violet/Red intensity ratio (spect.line.intensity;arith.ratio)
  FWHMv 0.1nm (n) Violet component Full-Width at Half-Maximum (Note 5)   (spect.line.width)
  FWHMRr 0.1nm (n) Red component Full-Width at Half-Maximum (Note 5)   (spect.line.width)

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