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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/AJ/146/131
  UBVRI standard stars at +50° declination (Landolt, 2013)
Post annotation
img(gal)
1.J/AJ/146/131/standardsUBVRI photometry of standard stars at Northern Declinations (Table2), and at the Celestial Equator (Table3), completed with accurate astrometry (Table5) (349 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)
  R (char) Sky region: Northern declinations (table2), or celestial Equator (table3) (obs.field)
  Name (char) (i) Standard star name (Note G1)   (meta.id;meta.main)
  N (char) N indicates a note on this star (meta.ref.url)
  <Vmag> mag Mean V band magnitude (phot.mag;em.opt.V)
  e_<Vmag> mag (n) Mean error in <Vmag> (stat.error;phot.mag;em.opt.V)
  <B-V> mag Mean B-V color index (phot.color;em.opt.B;em.opt.V)
  e_<B-V> mag (n) Mean error in <B-V> (stat.error;phot.color;em.opt.B)
  <U-B> mag Mean U-B color index (phot.color;em.opt.U;em.opt.B)
  e_<U-B> mag (n) Mean error in <U-B> (stat.error;phot.color;em.opt.U)
  <V-R> mag Mean V-R color index (phot.color;em.opt.V;em.opt.R)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  e_<V-R> mag (n) Mean error in <V-R> (stat.error;phot.color;em.opt.V)
  <R-I> mag (n) Mean R-I color index (phot.color;em.opt.R;em.opt.I)
  e_<R-I> mag (n) Mean error in <R-I> (stat.error;phot.color;em.opt.R)
  <V-I> mag (n) Mean V-I color index (phot.color;em.opt.V;em.opt.I)
  e_<V-I> mag (n) Mean error in <V-I> (stat.error;phot.color;em.opt.V)
  No  Number of times that each star was observed (meta.number)
  Nn  Number of nights during which a star was observed (meta.number)
  RAJ2000 "h:m:s" (i) Hour of Right Ascension (J2000) (Note 1)   (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Degree of Declination (J2000) (Note 1)   (pos.eq.dec;meta.main)
  UCAC4a (char) Identifier from UCAC4 catalog (cat. I/322) (meta.id)
  UCAC4b (char) Second UCAC4 identifier for UCAC4 641-047816 (meta.id)
  2MASS (char) 2MASS name (cat. II/246) (JHHMMSSss+DDMMSSs) (meta.id)
  pmRA mas/yr Proper motion in Right Ascension (Note 1)   (pos.pm;pos.eq.ra)
  e_pmRA mas/yr 1σ uncertainty in pmRA (stat.error;pos.pm;pos.eq.ra)
  pmDE mas/yr Proper motion in Declination (Note 1)   (pos.pm;pos.eq.dec)
  e_pmDE mas/yr 1σ uncertainty in pmDE (stat.error;pos.pm;pos.eq.dec)
  SimbadName (char) Designation understandable by the Simbad data-base (meta.id)

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