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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (154448 rows)
  recno=104180
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ColumnValue  Explain   (UCD)
_RAJ200017 55 15.5600 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-21 49 11.000 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195017 52 15.0404 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-21 48 43.594 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon007.2270503 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat +1.7778144 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
104180recno 104180  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS17552-2149  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscARA1504  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11920 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 6  Number of Observations (up to 9999) (meta.number)
pa1162 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2163 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 8.9 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 9.40 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.850 mag Magnitude of First Component (phot.mag;em.opt)
mag211.89 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 0 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -2 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 1 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)
Notes    [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200017 55 15.56 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-21 49 11.0 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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