VizieR

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VizieR

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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (155511 rows)
  recno=128892
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ColumnValue  Explain   (UCD)
_RAJ200020 11 39.7700 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+34 30 33.300 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 09 44.3615 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+34 21 29.605 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon072.2101820 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat +0.3910722 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
128892recno 128892  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS20117+3431  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscCRB 133  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11998 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)
pa1114 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2113 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 10.8 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 10.70 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag116.200 mag Magnitude of First Component (phot.mag;em.opt)
mag218.30 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 45 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 53 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 48 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 54 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   Durchmusterung Number (Note 3)   (meta.id)
NotesV   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200020 11 39.77 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+34 30 33.3 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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