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) (154792 rows)
  recno=122504
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ColumnValue  Explain   (UCD)
_RAJ200019 44 58.4400 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+45 07 50.500 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195019 43 24.5835 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+45 00 27.932 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon078.7093901 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+10.2430679 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
122504recno 122504  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS19450+4508  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscSTF2579  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAB  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11826 yr Date of first satisfactory observation (time.epoch)
Obs22020 yr Date of last satisfactory observation (time.epoch)
Nobs 488  Number of Observations (up to 9999) (meta.number)
pa1 41 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2213 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 1.9 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 2.70 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 2.890 mag Magnitude of First Component (phot.mag;em.opt)
mag2 6.27 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeB9.5IV  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 51 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 50 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2  mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2  mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+44 3234  Durchmusterung Number (Note 3)   (meta.id)
NotesNO   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200019 44 58.44 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+45 07 50.5 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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