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VizieR

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J/AJ/134/1890/table5 Secondary standard stars in u'g'r'i'z' (Clem+, 2007)
Secondary standards in star clusters NGC 2682, NGC 5272, NGC 6205, NGC 6341, NGC 6791, NGC 6838 (12225 rows)
  recno=4539
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ColumnValue  Explain   (UCD)
_RAJ200019 21 00.5900 "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+37 45 06.800 "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)
_RAB195019 19 15.3087 "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+37 39 23.548 "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)
_Glon069.9515507 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+10.8726611 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)
4539recno 4539  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ClusterNGC 6791  Globular cluster name (Note 1)   (meta.id.parent)
Star 1830  Sequential identification number, Cl* NGC NNNN CVS NNNNN in Simbad (meta.id;meta.main)
Xpos -359.8 pix X pixel coordinate (Note 2)   (pos.cartesian.x)
Ypos -284.7 pix Y pixel coordinate (Note 3)   (pos.cartesian.y)
u'mag  mag The u' band magnitude (Note 4)   (phot.mag;em.opt.U)
e_u'mag  mag Uncertainty in u'mag (Note 4)   (stat.error;phot.mag)
o_u'mag0  Number of measurements in u'mag (meta.number)
g'mag17.859 mag The g' band magnitude (Note 4)   (phot.mag;em.opt.B)
e_g'mag 0.0042 mag Uncertainty in g'mag (Note 4)   (stat.error;phot.mag;em.opt.B)
o_g'mag 6  Number of measurements in g'mag (meta.number)
r'mag17.163 mag The r' band magnitude (Note 4)   (phot.mag;em.opt.R)
e_r'mag 0.0031 mag Uncertainty in r'mag (Note 4)   (stat.error;phot.mag;em.opt.R)
o_r'mag 7  Number of measurements in r'mag (meta.number)
i'mag16.955 mag The i' band magnitude (Note 4)   (phot.mag;em.opt.I)
e_i'mag 0.0105 mag Uncertainty in i'mag (Note 4)   (stat.error;phot.mag;em.opt.I)
o_i'mag 5  Number of measurements in i'mag (meta.number)
z'mag16.864 mag The z' band magnitude (Note 4)   (phot.mag;em.opt.I)
e_z'mag 0.0165 mag Uncertainty in z'mag (Note 4)   (stat.error;phot.mag;em.opt.I)
o_z'mag2  Number of measurements in z'mag (meta.number)
chi 0.514  Mean value of χ image-quality index (Note 5)   (stat.fit.goodness)
sharp-0.018  Mean value of sharp image-quality index (Note 5)   (src.class.starGalaxy)
RAJ200019 21 00.59 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+37 45 06.8 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
  
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