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IV/26
 Hercules Messier 13 (M13) photometry (Ludendorff, 1905)
Post annotation
img(gal)
1.IV/26/catalogCatalog of stars in Messier 13 (1136 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)
  Seq   [1,1136] Sequential number of star in cluster (meta.id;meta.main)
  n_Seq (char) [*] indicates a note in notes.dat file (meta.note)
  ma  Brightness estimate from Plate A (Note 2)   (meta.note;phot)
  n_ma (char) [*] when the star is not clearly seen on both plates (meta.note)
  dm  (n) difference (ma-mb+1) between plates (Note 2)   (phot.mag;arith.diff)
  Xpos  X mean position (in 5.sin(1arcmin)) (pos.cartesian.x;instr.det)
  Ypos  Y mean position (in 5.sin(1arcmin)) (pos.cartesian.y;instr.det)
  dXpos 30mas (n) Position difference on 2 plates (A-B) (pos;arith.diff)
  u_dXpos (char) [)] when star not found on the 2 reductions (meta.code.error)
  dYpos 30mas (n) Position difference on 2 plates (A-B) (pos;arith.diff)

ALL cols
    
(n) indicates a possible blank or NULL column  
  u_dYpos (char) [)] when star not found on the 2 reductions (meta.code.error)
  oRA "d:m:s" Offset in right ascension (min) (Note 1)   (pos.eq.ra;arith.diff)
  oDE "d:m:s" Offset in declination (arcmin) (Note 1)   (pos.eq.dec;arith.diff)
  S  (n) Number of the star in Scheiner's (1892) (meta.id.cross)
  S2  (n) when 2 Scheiner's numbers represent the star (meta.id.cross)
  u_S (char) [)] when Scheiner's star seen on 1 plate only (meta.code.error)
  n_S (char) [+] disagreement with Scheiner's, in notes2.dat file (meta.note)
  Gr mag (n) Magnitude assigned in Scheiner's catalog (phot.mag;em.opt)
  dRA arcsec (n) Difference in RA Ludendorff - Scheiner (pos.eq.ra;arith.diff)
  u_dRA (char) [)] disagreement with Scheiner's (meta.code.error)
  dDE arcsec (n) Difference in DE Ludendorff - Scheiner (pos.eq.dec;arith.diff)
  u_dDE (char) [)] disagreement with Scheiner's (meta.code.error)
  _RA deg J2000 position computed from (Xpos,Ypos) (right ascension part) (pos.eq.ra;meta.main)
  _DE deg J2000 position computed from (Xpos,Ypos) (declination part) (pos.eq.dec;meta.main)

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