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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=13856
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ColumnValue  Explain   (UCD)
_RAJ200010 27 53.0100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+36 42 26.100 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195010 24 59.8929 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+36 57 51.060 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon186.2866041 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+58.2774618 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)
13856recno 13856  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CCDM10279+3642  (i) CCDM number (Catalogue I/211) (meta.id;meta.main)
rComp   Reference component when different from A (meta.note)
CompB  Component considered (meta.code.multip)
HIC 51233   [1/120313] HIC number as in 'main' file (meta.id)
RAJ200010 27 53.01 "h:m:s" (i) Right Ascension J2000 (hours) (pos.eq.ra;meta.main)
DEJ2000+36 42 26.1 "d:m:s" (i) Declination J2000 (degrees) (pos.eq.dec;meta.main)
Mag 7.0 mag Magnitude (generally V, sometimes photographic for the faintest systems) (phot.mag;em.opt.V)
Obs1904 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)
Note1O   [O] O=system with known orbit (meta.note)
Note2    [A] A=astrometric binary (meta.note)
pmRA-0.119 arcsec/a Proper motion in right ascension =15.mu_alpha*cos(delta) (pos.pm;pos.eq.ra)
pmDE-0.105 arcsec/a Proper motion in declination (pos.pm;pos.eq.dec)
DM   DM number. Last char is a suffix to DM, or "*" if HD convention is not followed. (meta.id)
HD    [1/359083] HD/HDE number (meta.id)
AG   AGK3 or SAO number (meta.id)
IDS10221N3713 B  IDS number (equinox B1900), with component indication. (meta.id)
ADS 7780   [1/17180] ADS number (meta.id)
  
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