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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2014)
The Washington Double Star Catalog (main part) (145660 rows)
  WDS=00490+1656
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ColumnValue  Explain   (UCD)
_RAJ200000 48 58.7100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+16 56 28.100 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 46 20.7941 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+16 40 17.614 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon122.0863153 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat-45.9265718 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
4337recno 4337  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS00490+1656  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscBUP 12  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAB  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11911 yr Date of first satisfactory observation (time.epoch)
Obs22013 yr Date of last satisfactory observation (time.epoch)
Nobs 7  Number of Observations (up to 9999) (meta.number)
pa1322 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2331 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 69.0 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 85.60 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 5.12 mag Magnitude of First Component (phot.mag;em.opt)
mag212.90 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeF8V  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -3 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1-202 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2  mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2  mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+16 76  Durchmusterung Number (Note 3)   (meta.id)
NotesNU   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!] indicates a position derived from WDS name (meta.note)
RAJ200000 48 58.71 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+16 56 28.1 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
ColumnValue  Explain   (UCD)
_RAJ200000 48 58.7100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+16 56 28.100 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 46 20.7941 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+16 40 17.614 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon122.0863153 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat-45.9265718 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
4338recno 4338  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS00490+1656  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscBUP 12  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAC  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11911 yr Date of first satisfactory observation (time.epoch)
Obs22013 yr Date of last satisfactory observation (time.epoch)
Nobs 6  Number of Observations (up to 9999) (meta.number)
pa1165 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2161 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 79.0 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 61.10 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 5.12 mag Magnitude of First Component (phot.mag;em.opt)
mag213.58 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeF8V  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -3 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1-202 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2  mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2  mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   Durchmusterung Number (Note 3)   (meta.id)
NotesNU   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!] indicates a position derived from WDS name (meta.note)
RAJ200000 48 58.71 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+16 56 28.1 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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