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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=2108
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ColumnValue  Explain   (UCD)
_RAJ200012 59 34.57100 "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+27 54 52.4400 "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 57 09.76970 "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 11 01.9664 "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)
_Glon056.94692782 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+88.03181999 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)
2108recno 2108  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SN2010ai  Supernova identifier (obs.field)
Seq 3  Standard star number (Note 1)   (meta.id;meta.main)
RAJ200012 59 34.571 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+27 54 52.44 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
Vmag17.505 mag V band magnitude (phot.mag;em.opt.V)
e_Vmag 0.013 mag The 1σ error in Vmag (stat.error;phot.mag;em.opt.V)
o_Vmag7  Number of Vmag observations (meta.number)
U-B-0.823 mag The (U-B) color index (Note 2)   (phot.color;em.opt.U;em.opt.B)
e_U-B 0.174 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 0.077 mag The (B-V) color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.020 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-0.088 mag The (V-r') color index (phot.color;em.opt.V;em.opt.R)
e_V-r 0.016 mag The 1σ error in V-r (stat.error)
o_V-r7  Number of V-r observations (meta.number)
V-i-0.281 mag The (V-i') color index (phot.color;em.opt.V;em.opt.I)
e_V-i 0.021 mag The 1σ error in V-i (stat.error)
o_V-i7  Number of V-i observations (meta.number)
  
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