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) (155159 rows)
  recno=124211
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ColumnValue  Explain   (UCD)
_RAJ200019 49 59.9100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+17 57 26.000 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195019 47 45.3085 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+17 49 48.172 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon055.5795508 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat -4.2093856 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
124211recno 124211  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS19500+1757  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscH 4 99  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAC  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11879 yr Date of first satisfactory observation (time.epoch)
Obs22018 yr Date of last satisfactory observation (time.epoch)
Nobs 23  Number of Observations (up to 9999) (meta.number)
pa1256 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2256 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 69.5 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 68.80 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 7.990 mag Magnitude of First Component (phot.mag;em.opt)
mag2 9.10 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeB7Vp  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 1 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -12 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 2 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -11 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+17 4109  Durchmusterung Number (Note 3)   (meta.id)
NotesN   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200019 49 59.91 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+17 57 26.0 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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