VizieR

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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=11118
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ColumnValue  Explain   (UCD)
_RAJ200019 21 01.8300 "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 40.000 "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 16.5632 "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 56.663 "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)
_Glon069.9618145 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+10.8730342 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)

SBG11118  (i) Sequential identification number (Note 1)   (meta.id;meta.main)

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

Xpos1313.8 pix X in accompanying image (Note 2)   (pos.cartesian.x;obs.image)
Ypos1055.9 pix Y in accompanying image (Note 2)   (pos.cartesian.y;obs.image)
Bmag22.948 mag B-band magnitude (phot.mag;em.opt.B)
e_Bmag 0.0306 mag σ(B), standard error of the mean (stat.error;phot.mag;em.opt.B)
o_Bmag 47  Number of valid photometric measurements in B (meta.number)
Vmag22.033 mag V-band magnitude (phot.mag;em.opt.V)
e_Vmag 0.0083 mag σ(V), standard error of the mean (stat.error;phot.mag;em.opt.V)
o_Vmag 705  Number of valid photometric measurements in V (meta.number)
Imag20.894 mag I-band magnitude (phot.mag;em.opt.I)
e_Imag 0.0073 mag σ(I), standard error of the mean (stat.error;phot.mag;em.opt.I)
o_Imag 656  Number of valid photometric measurements in I (meta.number)
chi 1.172  Mean value of the χ image-quality index (Note 3)   (stat.fit.goodness)
sharp 2.051  Mean value of the sharp image-quality index (Note 4)   (src.class.starGalaxy)
sep-0.74   Value of the sep image-isolation index (Note 5)   (meta.code)
VI 0.866  Value of the variability index (meta.code;src.var.index)
w_VI703.5  Weight of the variability index (stat.weight;phys.atmol.weight)
Num 408  Number of images used for the astrometry (meta.number)
RAJ200019 21 01.83 "h:m:s" (i) Hour of Right Ascension (J2000.0) (pos.eq.ra;meta.main)
DEJ2000+37 45 40.0 "d:m:s" (i) Degree of Declination (J2000.0) (pos.eq.dec;meta.main)
  
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