VizieR

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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

  
II/20A
  UBV Photometry of O and B Stars in Vela (Denoyelle 1977)
ReadMe+ftp
1977A&AS...27..343D
Similar Catalogs
Post annotation 		img(gal)
1.II/20A/catalogResults (table 3 of the paper), completed with accurate position and designation (381 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. ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc)
  m_Seq  (n) [1/5] Multiplicity index to star ((unassigned);(unassigned);(unassigned);pos.posAng)
  Seq   [1/358] Running number ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith)
  HD  (n) HD number ((unassigned);(unassigned);(unassigned);spect.line.veloc)
  CPD (char) Cape Photographic Durchmusterung (or CD) ((unassigned);(unassigned);(unassigned);spect.line.veloc)
  n_CPD (char) [ *] * = Cordoba Durchmusterung designation ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)
  GLON deg Galactic longitude ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);meta.main)
  GLAT deg Galactic latitude (XXXXXXX)
  Vmag mag (n) [2.4/14.5] V magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  u_Vmag (char) [ ()] Uncertainty flag for V ((unassigned);(unassigned);(unassigned);pos.galactic.lon)
  B-V mag (n) (B-V) color index ((unassigned);phys.veloc.orbital;arith.diff;pos.healpix;(unassigned);(unassigned);(unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  u_B-V (char) [ (] Uncertainty flag for B-V ((unassigned);(unassigned);(unassigned);pos.galactic.lon;pos.healpix;(unassigned);(unassigned))
  U-B mag (n) (U-B) color index (stat.fit.residual;pos.wcs.crval;arith.grad;pos.healpix;(unassigned);(unassigned);(unassigned))
  u_U-B (char) [ (] Uncertainty flag for U-B ((unassigned);instr.det.noise;stat.min;pos.galactic.lon;pos.healpix;(unassigned);(unassigned))
  Sp (char) MK or HD spectral classification ((unassigned);phys.veloc.orbital;arith.diff;pos.posAng;meta.main)
  r_Sp  (n) [1,8] Number of the source for MK Dp. ((unassigned);(unassigned);(unassigned);phys.veloc.dispersion)
  em (char) [ E] E = H{alpha} emission noted on red plates ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc.orbital)
  Sp2 (char) Spectral type obtained from Q method (stat.max;obs.atmos.refractAngle;arith.grad;pos.posAng;meta.main)
  Q mag (n) Q parameter = (U-B)-0.72 (B-V) ((unassigned);(unassigned);(unassigned);spect.dopplerVeloc.radio)
  E(B-V) mag (n) (B-V) colour excess ((unassigned);phys.veloc.orbital;arith.diff;pos.lsr)
  A(V) mag (n) A(V) parameter = 3E(B-V) ((unassigned);(unassigned);(unassigned);phys.dust)
  m-M mag (n) Distance modulus ((unassigned);(unassigned);(unassigned);em.freq.cutoff)
  R pc (n) Distance of the star ((unassigned);(unassigned);(unassigned);em.UV.10-50nm;arith;meta.main)
  Z pc Distance from the galactic plane [R*sin(GLAT)] ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);#D TeX(env) arg. undefined#ifference between two quantities described by the same UCD)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Nobs  Number of observations ((unassigned);(unassigned);(unassigned);src.var)
  rem (char) [ *] comment in file "remarks.dat" ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)
  RAJ2000 "h:m:s" (n) Right Ascension J2000, Ep=J2000 ((unassigned);phys.veloc.orbital;arith.diff;(unassigned))
  DEJ2000 "d:m:s" (n) Declination J2000, Ep=J2000 ((unassigned);(unassigned);(unassigned);(unassigned))
  f_Sname (char) * indicates an insecure identification, and N a note about the identification ((unassigned);obs.atmos.extinction;arith.factor;pos.eq.dec)
  Sname (char) Name understandable by Simbad ((unassigned);em.IR.8-15um;arith.factor;spect.line.veloc)
  Name2 (char) Other name (phot.color;em.IR.60-100um;arith.factor;spect.line.veloc)
  _RA.icrs deg (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) ((unassigned);(unassigned);(unassigned);(unassigned))
  _DE.icrs deg (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) ((unassigned);(unassigned);(unassigned);(unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846492788 Where phase=3 and catid=2020
**** 
**** --POSTGRES MSG db=1
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****error getting UCD 1095216660480 1020
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR1003334.err (2026-10-28T08:53:06)
-3
-source=II/20A/catalog
-ref=VIZ6ae1b7f4f4f46
elapse time 2