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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2014)
The Washington Double Star Catalog (main part) (149682 rows)
  recno=103423
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ColumnValue  Explain   (UCD)
_RAJ200018 15 33.4100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+44 16 59.600 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 14 04.6420 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+44 15 54.142 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon071.8272463 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+24.6903853 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
103423recno 103423  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS18156+4417  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscES 1420  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAB  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11893 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 13  Number of Observations (up to 9999) (meta.number)
pa1 66 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 66 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 8.5 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 8.30 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.22 mag Magnitude of First Component (phot.mag;em.opt)
mag211.40 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeA0  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -3 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 13 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -5 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 12 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+44 2861  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)
RAJ200018 15 33.41 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+44 16 59.6 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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