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VizieR

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J/PASP/115/413/catalog BVI photometry in the open cluster NGC 6791 (Stetson+, 2003)
Main data table (16258 rows)
  SBG=2746
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ColumnValue  Explain   (UCD)
_RAJ200019 20 34.9700 "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 52.500 "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 18 49.7442 "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 40 11.001 "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)
_Glon069.9255223 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+10.9540906 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)

SBG 2746  (i) Sequential identification number (Note 1)   (meta.id;meta.main)

xx  Flag set to x if crossids available in Table crossid (meta.ref.url)

Xpos 676.8 pix X in accompanying image (Note 2)   (pos.cartesian.x;obs.image)
Ypos1081.1 pix Y in accompanying image (Note 2)   (pos.cartesian.y;obs.image)
Bmag15.609 mag B-band magnitude (phot.mag;em.opt.B)
e_Bmag 0.0160 mag σ(B), standard error of the mean (stat.error;phot.mag;em.opt.B)
o_Bmag 9  Number of valid photometric measurements in B (meta.number)
Vmag15.031 mag V-band magnitude (phot.mag;em.opt.V)
e_Vmag 0.0001 mag σ(V), standard error of the mean (stat.error;phot.mag;em.opt.V)
o_Vmag 617  Number of valid photometric measurements in V (meta.number)
Imag14.434 mag I-band magnitude (phot.mag;em.opt.I)
e_Imag 0.0003 mag σ(I), standard error of the mean (stat.error;phot.mag;em.opt.I)
o_Imag 162  Number of valid photometric measurements in I (meta.number)
chi 0.843  Mean value of the χ image-quality index (Note 3)   (stat.fit.goodness)
sharp 0.053  Mean value of the sharp image-quality index (Note 4)   (src.class.starGalaxy)
sep11.44   Value of the sep image-isolation index (Note 5)   (meta.code)
VI 0.300  Value of the variability index (meta.code;src.var.index)
w_VI394.0  Weight of the variability index (stat.weight;phys.atmol.weight)
Num 788  Number of images used for the astrometry (meta.number)
RAJ200019 20 34.97 "h:m:s" (i) Hour of Right Ascension (J2000.0) (pos.eq.ra;meta.main)
DEJ2000+37 45 52.5 "d:m:s" (i) Degree of Declination (J2000.0) (pos.eq.dec;meta.main)
  
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