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VizieR

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I/196/annex1 Hipparcos Input Catalogue, Version 2 (Turon+ 1993)
Double and Multiple System Components (32290 rows)
  recno=16858
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ColumnValue  Explain   (UCD)
_RAJ200013 00 43.8300 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+56 21 59.100 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 58 35.3458 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+56 38 07.992 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon120.3012228 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+60.7143441 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
16858recno 16858  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CCDM13007+5622  (i) CCDM number (Catalogue I/211) (meta.id;meta.main)
rComp   Reference component when different from A (meta.note)
CompA  Component considered (meta.code.multip)
HIC 63503   [1/120313] HIC number as in 'main' file (meta.id)
RAJ200013 00 43.83 "h:m:s" (i) Right Ascension J2000 (hours) (pos.eq.ra;meta.main)
DEJ2000+56 21 59.1 "d:m:s" (i) Declination J2000 (degrees) (pos.eq.dec;meta.main)
Mag 4.9 mag Magnitude (generally V, sometimes photographic for the faintest systems) (phot.mag;em.opt.V)
Obs  a Year of observation of the relative position (time.epoch)
PA  deg [ 0-9.EFPNS]Position angle (pos.posAng)
Sep  arcsec Separation (arcsec) (pos.angDistance)
Note1    [O] O=system with known orbit (meta.note)
Note2    [A] A=astrometric binary (meta.note)
pmRA 0.117 arcsec/a Proper motion in right ascension =15.mu_alpha*cos(delta) (pos.pm;pos.eq.ra)
pmDE-0.014 arcsec/a Proper motion in declination (pos.pm;pos.eq.dec)
DMBD +57 1408  DM number. Last char is a suffix to DM, or "*" if HD convention is not followed. (meta.id)
HD113139   [1/359083] HD/HDE number (meta.id)
AG+56 916  AGK3 or SAO number (meta.id)
IDS12564N5654 A  IDS number (equinox B1900), with component indication. (meta.id)
ADS 8739   [1/17180] ADS number (meta.id)
  
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