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) (155005 rows)
  recno=112859
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ColumnValue  Explain   (UCD)
_RAJ200018 55 42.2900 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+57 14 25.900 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 54 49.2229 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+57 10 27.604 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon087.2362440 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+21.9930299 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
112859recno 112859  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS18557+5714  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscTDT1129  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11991 yr Date of first satisfactory observation (time.epoch)
Obs22016 yr Date of last satisfactory observation (time.epoch)
Nobs 3  Number of Observations (up to 9999) (meta.number)
pa1338 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 14 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 0.5 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 0.50 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag111.520 mag Magnitude of First Component (phot.mag;em.opt)
mag211.79 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -4 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -21 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -4 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -21 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)
RAJ200018 55 42.29 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+57 14 25.9 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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