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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/ApJS/98/595
  OB associations in M31 (Hill+ 1995)
Post annotation
img(gal)
1.J/ApJS/98/595/table2(c)Positions of M31 associations and numbers of stars observed by UIT (63 rows)
2.J/ApJS/98/595/table3Extinction and ultraviolet surface photometry of M31 associations (63 rows)
3.J/ApJS/98/595/table4Source identifications, positions and magnitudes (611 rows)

 
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)vdB  (i) van den Bergh association observed by UIT (meta.id;meta.main)
  (1)RAJ2000 "h:m:s" (i) Right Ascension, equinox J2000 (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) Declination, equinox J2000 (pos.eq.dec;meta.main)
  (1)N(NUV)  No. of stars observed in near-UV (2490 A) (meta.number)
  (1)N(FUV)  No. of stars observed in far-UV (1520 A) (meta.number)
  (2)E(B-V)  (n) []? Value of E(B-V) within M31 (Note)   (phot.color.excess)
  (2)Z249  (n) []? Normalized extinction Z249 = A249/E(B-V) (phys.absorption)
  (2)Z152  (n) []? Normalized extinction Z152 = A152/E(B-V) (phys.absorption)
  (2)l_f249 (char) [≥] f249 limiting characters, '≥' (meta.code.error)
  (2)f249  Near-UV total flux above the sky (Note)   (phot.flux;em.UV)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)e_f249  (n) []? fractional error in f249 (Note)   (stat.error)
  (2)l_f152 (char) [≥] f152 limiting characters, '≥' (meta.code.error)
  (2)f152  Far-UV total flux above the sky (Note)   (phot.flux;em.UV)
  (2)e_f152  (n) []? Fractional error in f152 (Note)   (stat.error)
  (2)m152-m249 mag (n) []? m152-m249 = -2.5xlogf152/f249 (phot.color;em.UV;em.UV)
  (2)T249  (n) []? Fraction of f249 by nonforeground stars (Note)   (stat)
  (2)T152  (n) []? Fraction of f152 by nonforeground stars (Note)   (stat)
  (3)n_vdB (char) Always '-', separating assoc. and seq. nos. (meta.note)
  (3)Seq  Sequential number of star within association (meta.id)
  (3)Xpos arcsec X offset E of N of fiducial pos. in Table 2 (pos.cartesian)
  (3)Ypos arcsec Y offset E of N of fiducial pos. in Table 2 (pos.cartesian)
  (3)m249 mag Near-UV magnitude (phot.mag;em.UV.200-300nm)
  (3)m152 mag (n) []? Far-UV magnitude (phot.mag;em.UV.100-200nm)
  (3)Umag mag (n) []? U magnitude (phot.mag;em.opt.U)
  (3)Bmag mag (n) []? B magnitude (phot.mag;em.opt.B)
  (3)Rmag mag (n) []? R magnitude (phot.mag;em.opt.R)
  (3)ID (char) Alternate identification (Note)   (meta.id)

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