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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (152451 rows)
  recno=97791
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ColumnValue  Explain   (UCD)
_RAJ200017 02 07.9000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+07 12 48.900 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195016 59 42.3519 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+07 17 04.569 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon026.7212746 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+27.5538884 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
97791recno 97791  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS17021+0713  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscSTF2113  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11832 yr Date of first satisfactory observation (time.epoch)
Obs22018 yr Date of last satisfactory observation (time.epoch)
Nobs 33  Number of Observations (up to 9999) (meta.number)
pa1119 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2116 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 4.7 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 5.20 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 8.430 mag Magnitude of First Component (phot.mag;em.opt)
mag210.42 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeA3  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -4 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -4 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 2 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -13 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+07 3292  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)
RAJ200017 02 07.90 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+07 12 48.9 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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