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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=117286
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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)
117286recno 117286  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)
CompAC  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11931 yr Date of first satisfactory observation (time.epoch)
Obs22006 yr Date of last satisfactory observation (time.epoch)
Nobs 4  Number of Observations (up to 9999) (meta.number)
pa1 99 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2101 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 4.2 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 4.50 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag113.700 mag Magnitude of First Component (phot.mag;em.opt)
mag213.70 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 9 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -9 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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