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=110960
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ColumnValue  Explain   (UCD)
_RAJ200018 44 22.7800 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+39 36 45.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 42 43.2098 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+39 33 33.767 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon068.7949705 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+18.1704589 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
110960recno 110960  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)
CompCI  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11863 yr Date of first satisfactory observation (time.epoch)
Obs22012 yr Date of last satisfactory observation (time.epoch)
Nobs 18  Number of Observations (up to 9999) (meta.number)
pa1 37 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 37 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1129.1 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2120.40 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 5.250 mag Magnitude of First Component (phot.mag;em.opt)
mag210.12 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeF0Vn  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 8 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 54 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 22.78 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+39 36 45.8 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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