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) (154915 rows)
  recno=130145
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ColumnValue  Explain   (UCD)
_RAJ200020 20 32.3600 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 52 30.000 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 18 22.7673 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 42 57.294 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon064.4183703 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat -7.1191816 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
130145recno 130145  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS20205+2353  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscBKO 645  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAD  Components when more than 2 (Note 1)   (meta.code.multip)
Obs12000 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 8  Number of Observations (up to 9999) (meta.number)
pa1 45 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 45 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 11.7 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 11.80 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag111.920 mag Magnitude of First Component (phot.mag;em.opt)
mag214.70 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -4 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -4 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 12 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 26 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)
RAJ200020 20 32.36 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+23 52 30.0 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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