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VizieR

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VII/239A/icpos History and Accurate Positions for the NGC/IC Objects (Corwin, 2004)
NGC/IC positions (mean values) (15517 rows)
  recno=1777
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ColumnValue  Explain   (UCD)
_RAJ200000 21 35.700000 "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+22 30 23.00000 "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)
_RAB195000 18 59.499130 "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+22 13 44.99202 "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)
_Glon113.943407997 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-39.843936800 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)
1777recno 1777  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Note*   [*] indicates a note in the file "ngcnotes.txt" or "icnotes.txt" (meta.code)
CatI   [IN] Catalog: N=NGC, I=IC (meta.note)
NGC/IC1547  (i) Number in the NGC or IC catalog (meta.id;meta.main)
n_NGC/IC   Component or remarks (Note G1)   (meta.note)
RAJ200000 21 35.7000 "h:m:s" (i) Right Ascension J2000 (pos.eq.ra;meta.main)
DEJ2000+22 30 23.000 "d:m:s" (i) Declination J2000 (pos.eq.dec;meta.main)
qPosd   [a-g] Precision on position (Note G2)   (meta.code.qual)
N 1  Number of positions used (meta.number)
e_RAJ2000  arcsec Standard deviation in RA (stat.error;pos.eq.ra)
e_DEJ2000  arcsec Standard deviation in DE (stat.error;pos.eq.dec)
RefsBign  References of positions detailed in "refs.dat" (meta.ref;pos.frame)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
NEDNED  ask the NED data-base about this object (meta.ref.url)
  
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