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VizieR

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J/ApJS/200/12/table4 CfA4: light curves for 94 type Ia SNe (Hicken+, 2012)
Standard system comparison star photometry (2301 rows)
  recno=2117
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ColumnValue  Explain   (UCD)
_RAJ200012 59 04.16800 "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+28 03 48.6700 "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)
_RAB195012 56 39.34635 "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+28 19 58.7516 "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)
_Glon062.32002754 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+88.06777602 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)
2117recno 2117  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SN2010ai  Supernova identifier (obs.field)
Seq12  Standard star number (Note 1)   (meta.id;meta.main)
RAJ200012 59 04.168 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+28 03 48.67 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
Vmag16.084 mag V band magnitude (phot.mag;em.opt.V)
e_Vmag 0.012 mag The 1σ error in Vmag (stat.error;phot.mag;em.opt.V)
o_Vmag7  Number of Vmag observations (meta.number)
U-B 0.250 mag The (U-B) color index (Note 2)   (phot.color;em.opt.U;em.opt.B)
e_U-B 0.110 mag The 1σ error in U-B (stat.error;phot.color;em.opt.U)
o_U-B1  Number of U-B observations (meta.number)
B-V 0.761 mag The (B-V) color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.018 mag The 1σ error in B-V (stat.error;phot.color;em.opt.B)
o_B-V7  Number of B-V observations (meta.number)
V-r 0.214 mag The (V-r') color index (phot.color;em.opt.V;em.opt.R)
e_V-r 0.010 mag The 1σ error in V-r (stat.error)
o_V-r7  Number of V-r observations (meta.number)
V-i 0.389 mag The (V-i') color index (phot.color;em.opt.V;em.opt.I)
e_V-i 0.012 mag The 1σ error in V-i (stat.error)
o_V-i7  Number of V-i observations (meta.number)
  
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