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=124208
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ColumnValue  Explain   (UCD)
_RAJ200019 50 01.3500 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 17 24.500 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195019 47 53.0652 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 09 46.182 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon060.1868078 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat -1.5130785 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
124208recno 124208  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS19500+2317  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscBKO 988  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   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)
pa1170 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2170 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 9.0 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 8.90 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.500 mag Magnitude of First Component (phot.mag;em.opt)
mag214.20 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -1 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -8 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 0 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -28 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)
RAJ200019 50 01.35 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+23 17 24.5 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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