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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=10756
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ColumnValue  Explain   (UCD)
_RAJ200019 21 00.7300 "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 13.800 "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 15.4519 "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 30.539 "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)
_Glon069.9535361 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+10.8730993 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)

SBG10756  (i) Sequential identification number (Note 1)   (meta.id;meta.main)

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

Xpos1287.5 pix X in accompanying image (Note 2)   (pos.cartesian.x;obs.image)
Ypos1003.5 pix Y in accompanying image (Note 2)   (pos.cartesian.y;obs.image)
Bmag21.734 mag B-band magnitude (phot.mag;em.opt.B)
e_Bmag 0.0099 mag σ(B), standard error of the mean (stat.error;phot.mag;em.opt.B)
o_Bmag 55  Number of valid photometric measurements in B (meta.number)
Vmag20.475 mag V-band magnitude (phot.mag;em.opt.V)
e_Vmag 0.0012 mag σ(V), standard error of the mean (stat.error;phot.mag;em.opt.V)
o_Vmag 922  Number of valid photometric measurements in V (meta.number)
Imag19.041 mag I-band magnitude (phot.mag;em.opt.I)
e_Imag 0.0009 mag σ(I), standard error of the mean (stat.error;phot.mag;em.opt.I)
o_Imag 701  Number of valid photometric measurements in I (meta.number)
chi 1.015  Mean value of the χ image-quality index (Note 3)   (stat.fit.goodness)
sharp 0.175  Mean value of the sharp image-quality index (Note 4)   (src.class.starGalaxy)
sep 1.05   Value of the sep image-isolation index (Note 5)   (meta.code)
VI 0.786  Value of the variability index (meta.code;src.var.index)
w_VI839.0  Weight of the variability index (stat.weight;phys.atmol.weight)
Num 678  Number of images used for the astrometry (meta.number)
RAJ200019 21 00.73 "h:m:s" (i) Hour of Right Ascension (J2000.0) (pos.eq.ra;meta.main)
DEJ2000+37 45 13.8 "d:m:s" (i) Degree of Declination (J2000.0) (pos.eq.dec;meta.main)
  
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