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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2014)
The Washington Double Star Catalog (main part) (150803 rows)
  recno=107697
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ColumnValue  Explain   (UCD)
_RAJ200018 42 37.9600 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+55 32 21.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 41 39.8069 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+55 29 17.342 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon084.9392622 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+23.2852426 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
107697recno 107697  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS18426+5532  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscH 6 37  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAC  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11852 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 14  Number of Observations (up to 9999) (meta.number)
pa1341 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2340 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1333.9 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2331.20 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 5.01 mag Magnitude of First Component (phot.mag;em.opt)
mag2 8.24 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeB9.5pHg:  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -3 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 23 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 11 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 13 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+55 2106  Durchmusterung Number (Note 3)   (meta.id)
NotesNY   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200018 42 37.96 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+55 32 21.8 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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