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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/AJ/120/333
  UBVRI and Hα in NGC 6530 (Sung+, 2000)
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img(gal)
1.J/AJ/120/333/table1(c)Photometric data (887 rows)
2.J/AJ/120/333/table3(c)PMS stars with Hα emission (37 rows)
3.J/AJ/120/333/table4(c)PMS candidates with weak Hα emission (9 rows)
4.J/AJ/120/333/table5(c)PMS stars and candidates from HST data (29 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)
   (ALL)SCB  (i) [1/887] Running identification number in NGC 6530 (Cl* NGC 6530 SCB NNNN in Simbad) (meta.id;meta.main)
   (ALL)RAJ2000 "h:m:s" (i) Right Ascension (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1)Tab  (n) [3-4] Table number if object in tables 3 or 4 (meta.id)
   (ALL)Vmag mag The weighted mean V band magnitude (phot.mag;em.opt.V)
   (ALL)V-I mag The weighted mean V-I color (phot.color;em.opt.V;em.opt.I)
  (1+2+3)B-V mag The weighted mean B-V color (phot.color;em.opt.B;em.opt.V)
  (1+2+3)U-B mag The weighted mean U-B color (phot.color;em.opt.U;em.opt.B)
  (1+2+3)R-Ha mag (n) The weighted mean (R-Hα filter) color (phot.color;em.opt.R;em.line.Halpha)
   (ALL)e_Vmag mag Uncertainty in Vmag (stat.error;phot.mag;em.opt.V)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)e_V-I mag Uncertainty in V-I (stat.error;phot.color;em.opt.V)
  (1+2+3)e_B-V mag Uncertainty in B-V (stat.error;phot.color;em.opt.B)
  (1+2+3)e_U-B mag Uncertainty in U-B (stat.error;phot.color;em.opt.U)
  (1+2+3)e_R-Ha mag (n) Uncertainty in R-Ha (stat.error;phot.color;em.opt.R)
   (ALL)o_Vmag  Number of observations for Vmag (meta.number)
   (ALL)o_V-I  Number of observations for V-I (meta.number)
  (1+2+3)o_B-V  Number of observations for B-V (meta.number)
  (1+2+3)o_U-B  Number of observations for U-B (meta.number)
  (1+2+3)o_R-Ha  Number of observations for R-Ha (meta.number)
  (1)Walker  (n) The Walker (1957ApJ...125..636W) identification number (NGC 6530 NNN in Simbad) (meta.id.cross)
  (1)f_Walker (char) Duplicity or uncertainty (?) flag for Walker (meta.code)
  (1)Prob  (n) [0,1] Proper motion membership probability (Note 1)   (pos.pm;stat.probability)
  (1)SpType (char) Spectral type and luminosity class (Note 2)   (src.spType)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Remark (char) Further remarks (Note 2)   (meta.note)
  (2+3)Rem (char) Remarks (meta.note)
  (4)PMS (char) [SC] S: PMS stars, C: PMS candidates (meta.code.class)
  (4)Ha mag Hα magnitude (phot.flux;em.line.Halpha)
  (4)e_Ha mag rms uncertainty on Ha (stat.error)
  (4)o_Ha  Number of observation for Hα (meta.number)

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