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) (154798 rows)
  recno=110964
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ColumnValue  Explain   (UCD)
_RAJ200018 44 20.4100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+39 37 42.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 42 40.9084 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+39 34 33.983 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon068.8077616 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+18.1831421 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
110964recno 110964  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS18443+3940  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscSTFA 37  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompEI  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 7  Number of Observations (up to 9999) (meta.number)
pa1 68 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 68 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1109.1 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2108.90 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag112.300 mag Magnitude of First Component (phot.mag;em.opt)
mag210.12 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 0 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -7 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -7 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -4 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   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)
RAJ200018 44 20.41 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+39 37 42.8 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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