VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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I/275/ac2002 The AC 2000.2 Catalogue (Urban+ 2001)
All 4,621,751 stars from the AC2000.2 Catalogue (Detailed introduction) (4621751 rows)
  recno=3987591
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Note: Detailed introduction can be found in intro.tex (see also http://aries.usno.navy.mil/ad/ac.html) Direct links to Hipparcos and Tycho observations are provided from the relevant columns.

ColumnValue  Explain   (UCD)
_RAJ200009 05 19.90100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (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.eq.ra)
_DEJ2000-53 14 13.1800 "d:m:s" Declination (FK5, Equinox=J2000.0) (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.eq.dec)
_RAB195009 03 47.89495 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (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.eq.ra)
_DEB1950-53 02 10.5253 "d:m:s" Declination (FK4, Equinox=B1950.0) (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.eq.dec)
_Glon272.89748419 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 -4.10049167 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)
3987591recno 3987591  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAJ200009 05 19.901 "h:m:s" (i) R.A. , at epoch mEp (J2000) (Note 1)   (pos.eq.ra;meta.main)
DEJ2000-53 14 13.18 "d:m:s" (i) Decl. , at epoch mEp (Note)   (pos.eq.dec;meta.main)
Bmag12.56 mag Observed B magnitude (Note 2)   (phot.mag;em.opt.B)
mEp1897.166 yr Mean epoch of position (time.epoch)
Num 2  Number of images used for astrometry (meta.number)
e_RAJ2000 0.200 arcsec Standard deviation of Right Ascension (Note 3)   (stat.error;pos.eq.ra)
e_DEJ2000 0.230 arcsec Standard deviation of Declination (Note 3)   (stat.error;pos.eq.dec)
ACnum 4069873  (i) USNO generated identifier (meta.id;meta.main)
HIP    Hipparcos number (Note 4)   (meta.id)
m_HIP   Hipparcos component identifier (Note 4)   (meta.code.multip)
TYC2858200079201  Tycho-2 identifier (Note 5)   (meta.id)
Vmag  mag V magnitude (Note 2)   (phot.mag;em.opt.V)
magflg2   [1,3] Magnitude warning flag (Note 6)   (meta.code)
verflg    [1] Verification flag (Note 7)   (meta.code)
  
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