VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

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

  
B/wds
  The Washington Visual Double Star Catalog (Mason+ 2001-2020)
ReadMe+ftp
2001AJ....122.3466M
Similar Catalogs

If the WDS and associated databases were helpful for your research work, the following acknowledgement would be appreciated: "This research has made use of the Washington Double Star Catalog maintained at the U.S. Naval Observatory"
Post annotation 		img(gal)
1.B/wds/wdsThe Washington Double Star Catalog (main part) (157012 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)
  WDS (char) (i) WDS name (based on J2000 position) (meta.id;meta.main)
  Disc (char) Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
  Comp (char) Components when more than 2 (Note 1)   (meta.code.multip)
  Obs1 yr (n) Date of first satisfactory observation (time.epoch)
  Obs2 yr (n) Date of last satisfactory observation (time.epoch)
  Nobs  Number of Observations (up to 9999) (meta.number)
  pa1 deg (n) Position Angle at date Obs1 (Note 2)   (pos.posAng)
  pa2 deg (n) Position Angle at date Obs2 (Note 2)   (pos.posAng)
  sep1 arcsec (n) Separation at date Obs1 (pos.angDistance;src.orbital)
  sep2 arcsec (n) Separation at date Obs12 (pos.angDistance;src.orbital)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  mag1 mag (n) Magnitude of First Component (phot.mag;em.opt)
  mag2 mag (n) Magnitude of Second Component (phot.mag;em.opt)
  SpType (char) Spectral Type (Primary/Secondary) (src.spType)
  pmRA1 mas/yr (n) Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
  pmDE1 mas/yr (n) Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
  pmRA2 mas/yr (n) Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
  pmDE2 mas/yr (n) Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
  DM (char) Durchmusterung Number (Note 3)   (meta.id)
  Notes (char) [B-Z ] Notes about the binary (Note 4)   (meta.note)
  n_RAJ2000 (char) [!P] indicates a position derived from WDS name (meta.note)
  RAJ2000 "h:m:s" (n)(i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (n)(i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  _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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