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II/50/ubv Photometric Standard Stars (Cousins 1971)
Photometric standard stars (tables II and IV of paper) (2036 rows)
  recno=863
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ColumnValue  Explain   (UCD)
_RAJ200022 25 16.6232 "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+01 22 38.642 "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)
_RAB195022 22 43.4358 "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+01 07 23.214 "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)
_Glon066.0067201 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-44.7394355 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)
863recno 863  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HD212571  HD identifier of the star (Cat. III/135) (meta.id;meta.main)
m_HD    [/] '/' indicates a blend with next HD number (meta.code.multip)
Vmag 4.660 mag Magnitude in Johnson V filter (phot.mag;em.opt.V)
u_Vmag:   [:)] doubtful value (:), variable value ()) (meta.code.error)
e_Vmag 0.020 mag Dispersion on Vmag (stat.error;phot.mag;em.opt.V)
w_Vmag 3.00   Weight on Vmag (stat.weight)
B-V-0.035 mag Mean Johnson B-V colour index (phot.color;em.opt.B;em.opt.V)
u_B-V    [:)] doubtful value (:), variable value ()) (meta.code.error;phot.color;em.opt.B)
e_B-V 0.013 mag Dispersion on B-V (stat.error;phot.color;em.opt.B)
w_B-V 3.50   Weight on B-V (stat.weight)
U-B-1.00 mag Mean Johnson U-B colour index (phot.color;em.opt.U;em.opt.B)
u_U-B:   [:)] doubtful value (:), variable value ()) (meta.code.error;phot.color;em.opt.U)
w_U-B 2.50   Weight on U-B (quarters assigned) (stat.weight)
S*   [CA*] Source of U-B value: C=Cape only, A=Catalina station (Arizona), *=discordant values. (meta.ref;phot.color;em.opt.U)
Notes   Remarks (variable star name, binarity) (meta.note)

SimbadSimbad  ask the Simbad data-base about this object
_RA336.31926 deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
_DE+01.37740 deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)
  
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