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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=5045
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ColumnValue  Explain   (UCD)
_RAJ200004 12 24.9900 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 34 28.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195004 09 25.4706 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 26 50.747 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon171.4401385 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-19.8334465 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)
5045recno 5045  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CCDM04124+2334  (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 19634   [1/120313] HIC number as in 'main' file (meta.id)
RAJ200004 12 24.99 "h:m:s" (i) Right Ascension J2000 (hours) (pos.eq.ra;meta.main)
DEJ2000+23 34 28.8 "d:m:s" (i) Declination J2000 (degrees) (pos.eq.dec;meta.main)
Mag 9.6 mag Magnitude (generally V, sometimes photographic for the faintest systems) (phot.mag;em.opt.V)
Obs1971 a Year of observation of the relative position (time.epoch)
PA 89 deg [ 0-9.EFPNS]Position angle (pos.posAng)
Sep 0.9 arcsec Separation (arcsec) (pos.angDistance)
Note1    [O] O=system with known orbit (meta.note)
Note2    [A] A=astrometric binary (meta.note)
pmRA-0.016 arcsec/a Proper motion in right ascension =15.mu_alpha*cos(delta) (pos.pm;pos.eq.ra)
pmDE-0.022 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)
IDS04064N2319 B  IDS number (equinox B1900), with component indication. (meta.id)
ADS    [1/17180] ADS number (meta.id)
  
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