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VizieR

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J/ApJS/183/261
  Optical photometry of the ONC (Da Rio+, 2009)
Post annotation
img(gal)
1.J/ApJS/183/261/table2(c)WFI photometric catalog relative to Night A observations (2621 rows)
2.J/ApJS/183/261/table4(c)New M-type stars classified from the [TiO] index (217 rows)
3.J/ApJS/183/261/table5(c)Hα excess (1040 rows)
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Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)n_[DRS2009] (char) M indicates M-type stars (table 4) and a Hα measurements (table5) (meta.ref.url)
   (ALL)[DRS2009]  (i) Identification number (meta.id;meta.main)
   (ALL)RAJ2000 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
  (1)Umag mag (n) U band Vega magnitude (Note 1)   (phot.mag;em.opt.U)
  (1)e_Umag mag (n) Error in Umag (stat.error;phot.mag;em.opt.U)
  (1)Bmag mag (n) B band Vega magnitude (Note 1)   (phot.mag;em.opt.B)
  (1)e_Bmag mag (n) Error in Bmag (stat.error;phot.mag;em.opt.B)
  (1)Vmag mag (n) V band Vega magnitude (Note 1)   (phot.mag;em.opt.V)
  (1)e_Vmag mag (n) Error in Vmag (stat.error;phot.mag;em.opt.V)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)TiO mag (n) TiO band Vega magnitude (Note 1)   (phot.mag;em.opt.R)
  (1)e_TiO mag (n) Error in TiO (stat.error)
  (1)Imag mag I band Vega magnitude (Note 1)   (phot.mag;em.opt.I)
  (1)e_Imag mag Error in Imag (stat.error;phot.mag;em.opt.I)
  (1)[H97b]  (n) Hillenbrand 1997 (Cat. J/AJ/113/1733) catalog identification (meta.id)
  (2+3)Seq  Running number (meta.id;meta.main)
  (2)[TiO] mag Index of [TiO] (Note 2)   (spect.index)
  (2)SpT (char) Spectral type (src.spType)
  (2)e_SpT  Uncertainty of spectral type (stat.error)
  (3)EWA 0.1nm Hα equivalent width in Angstroms (Note 1)   (spect.line.eqWidth)
  (3)EWHz Hz Hα equivalent width in Hertz (Note 1)   (spect.line.eqWidth)
  (3)Ex.erg mW/m2 Hα excess in erg/s/cm2 (phot.color.excess)
  (3)Ex.mJy mJy Hα excess in mJy (phot.color.excess)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)Cont.erg mW/m2 Hα continuum in erg/s/cm2 (phot.flux;em.line.Halpha)
  (3)Cont.mJy mJy Hα continuum in mJy (phot.flux;em.line.Halpha)

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