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VizieR

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

  
I/238A
  Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
ReadMe+ftp
1995GCTP..C......0V
Similar Catalogs
Post annotation 		img(gal)
1.I/238A/picatThe data file (8994 rows)

Simple ConstraintList Of Constraints
 
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)
  f_GCTP (char) [*] Indicates a note in file "errata.dat" (meta.code)
  GCTP  (i) Catalog number (Note)   (meta.id;meta.main)
  comp (char) Double star component (Note)   (meta.code.multip)
  RA1900 "h:m:s" (n)(i) Right ascension hours (1900.0) (pos.eq.ra;meta.main)
  DE1900 "d:m:s" (n)(i) Declination degrees (1900.0) (pos.eq.dec;meta.main)
  u_RA1900 (char) [:C] : = lower precision position (Note)   (meta.code.error;pos.eq.ra)
  Vmag mag (n)V magnitude or other magnitude (Note)   (phot.mag;em.opt.V)
  n_Vmag (char) P indicates blue passband (meta.note)
  B-V mag (n)B-V color (phot.color;em.opt.B;em.opt.V)
  U-B mag (n)U-B color (phot.color;em.opt.U;em.opt.B)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  r_Vmag (char) Source code for photometry (meta.ref;pos.frame)
  MK (char) Spectral type (Note)   (src.spType)
  r_MK (char) Source code for spectral type (meta.ref;pos.frame)
  var (char) Variable star name (Note)   (meta.id)
  HR  (n)HR number (Note)   (meta.id)
  supp (char) [S] S=in Hoffleit BSS Cat. V/36 (meta.note)
  HD (char) HD number and component (meta.id)
  DM (char) DM identification and component (Note)   (meta.id)
  name (char) Star name (meta.id)
  pm arcsec/yr(n)Total Proper motion (pos.pm)
  pmPA deg (n)Proper motion position angle (pos.posAng;pos.pm)
  pi arcsec (n)Weighted absolute parallax (pos.parallax.trig)
  e_pi mas (n)Standard error of parallax (stat.error)
  q_pi (char) [ GFPX]Quality of interagreement (Note)   (meta.code.qual)
  o_pi  (n)Number of parallax observations (Note)   (meta.number)
  Simbad  SIMBAD data for this star (meta.ref.url)
  _RA.icrs "h:m:s" (n)(i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
  _DE.icrs "d:m:s" (n)(i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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