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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (153007 rows)
  recno=135517
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ColumnValue  Explain   (UCD)
_RAJ200021 06 53.9500 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+38 44 57.900 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195021 04 55.1766 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+38 32 35.005 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon082.3197538 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat -5.8181288 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
135517recno 135517  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS21069+3845  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscSTF2758  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAB  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11753 yr Date of first satisfactory observation (time.epoch)
Obs22019 yr Date of last satisfactory observation (time.epoch)
Nobs1797  Number of Observations (up to 9999) (meta.number)
pa1 35 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2153 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 19.6 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 31.80 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 5.200 mag Magnitude of First Component (phot.mag;em.opt)
mag2 6.05 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeK5V+K7V  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 417 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 326 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 412 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 313 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+38 4343  Durchmusterung Number (Note 3)   (meta.id)
NotesNO P   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200021 06 53.95 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+38 44 57.9 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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