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I/131A/sao SAO Star Catalog J2000 (SAO Staff 1966; USNO, ADC 1990)
The SAO J2000.0 catalogue (258997 rows)
  SAO==181695
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ColumnValue  Explain   (UCD)
_RAJ200013 29 42.79 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000-23 16 52.6 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
181695recno 181695  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SAO181695   [1/258997] SAO Catalog number (meta.id;meta.main)
delFlag    [D] if star deleted (ignore all fields) (meta.code)
RAB195013 26 58.482 "h:m:s" Hours RA, Equinox=B1950, Epoch=1950.0 (pos.eq.ra;meta.main)
pmRA-0.0041 s/a Annual proper motion in RA, FK4 system (pos.pm;pos.eq.ra)
e_pmRA 4 mas/a Standard deviation in pmRA (stat.error;pos.pm;pos.eq.ra)
RA2mf    [±] '+', add 1, or '-', substract 1, RA minute: indication that the minutes of time associated with the seconds portion RA2 must be increased or decreased by 1 (meta.note)
RA2s58.676 s Seconds portion of RA, original epoch, precessed to B1950 (pos.eq.ra)
e_RA2s 9 10mas Standard deviation of RA2 (stat.error;pos.eq.ra)
EpRA21902.3 a Epoch of RA2 (RA original epoch) (time.epoch)
DEB1950-23 01 24.51 "d:m:s" Degrees Dec, equinox B1950, Epoch=1950.0 (pos.eq.dec;meta.main)
pmDE 0.011 arcsec/a Annual proper motion in Dec, FK4 system (Note 10)   (pos.pm;pos.eq.dec)
e_pmDE 5 mas/a Standard deviation of Dec proper motion (stat.error;pos.pm;pos.eq.dec)
DE2mf    [±] '+', add 1, or '-', substract 1: Indication that the arcminutes associated with DE2 must be increased or decreased by 1 (meta.note)
DE2s25.06 arcsec Seconds of Declination, original epoch, precessed to B1950 (pos.eq.dec)
e_DE2s 9 10mas Standard deviation of DE2 (stat.error;pos.eq.dec)
EpDE21902.0 a Epoch of DE2 (Declinaation original epoch) (time.epoch)
e_Pos 23 10mas Standard deviation of position at epoch 1950.0 (stat.error)
Pmag  mag []? Photographic magnitude (phot.mag;em.opt.B)
Vmag 3.5 mag []? Visual magnitude (phot.mag;em.opt.V)
SpTypeM7e  Spectral type, '+++' for composite spectra (src.spType)
r_Vmag 3  Coded source of visual magnitude (Note 1)   (meta.ref;pos.frame)
r_Num17  Coded source of star number and footnotes (Note 2)   (meta.ref;pos.frame)
r_Pmag0  Coded source of photographic magnitude (Note 3)   (meta.ref;pos.frame)
r_pmRA1  Coded source of proper motions (Note 4)   (meta.ref;pos.pm;pos.eq.ra)
r_SpType0  Coded source of spectral type (Note 5)   (meta.ref;pos.frame)
Rem4  Coded remarks duplicity and variability (Note 6)   (meta.code;src.var)
a_Vmag1  Accuracy of V: 0 = 2 decimals, 1=1 decimal (meta.code.qual)
a_Pmag0  Accuracy of Ptg: 0 = 2 decimals, 1=1 decimal (meta.code.qual)
r_Cat70  Code for source catalog (Note 7)   (meta.ref;pos.frame)
CatNum18239  Number in source catalog (meta.id)
DMBD-22 3601  Durchmusterung identification (Note 9)   (meta.id)
HD117287  Henry Draper Catalog (HD or HDE) number (A6) (Catalogue III/135) (meta.id)
m_HD0  HD component and multiple code (Note 8)   (meta.code.multip)
GC18239  Boss General Catalog (GC) number (Catalogue I/113) (meta.id)
RA200013 29 42.788 "h:m:s" Hours RA, equinox, epoch J2000.0 (pos.eq.ra)
pmRA2000-0.0040 s/a Annual proper motion in FK5 system (pos.pm;pos.eq.ra)
DE2000-23 16 52.57 "d:m:s" Degrees Dec, equinox, epoch J2000.0 (pos.eq.dec)
pmDE2000 0.016 arcsec/a Annual proper motion in FK5 system (Note 10)   (pos.pm;pos.eq.dec)

_RA.icrs13 29 42.790 "h:m:s" Right ascension (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-23 16 52.58 "d:m:s" Declination (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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