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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (152451 rows)
  recno=117285
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ColumnValue  Explain   (UCD)
_RAJ200019 30 20.9000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+29 11 18.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195019 28 21.6258 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+29 04 58.765 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon063.1563761 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat +5.2266209 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
117285recno 117285  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS19303+2911  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscMLB 697  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAB  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11931 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 5  Number of Observations (up to 9999) (meta.number)
pa1 3 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 10 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 3.1 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 7.60 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag113.700 mag Magnitude of First Component (phot.mag;em.opt)
mag214.20 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -16 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -18 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -37 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 18 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   Durchmusterung Number (Note 3)   (meta.id)
NotesR   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200019 30 20.90 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+29 11 18.8 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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