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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=2115
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ColumnValue  Explain   (UCD)
_RAJ200012 59 13.73900 "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 02 10.4800 "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 48.93123 "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 18 20.3872 "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)
_Glon061.12238036 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+88.04943118 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)
2115recno 2115  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SN2010ai  Supernova identifier (obs.field)
Seq10  Standard star number (Note 1)   (meta.id;meta.main)
RAJ200012 59 13.739 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+28 02 10.48 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
Vmag16.916 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-0.161 mag The (U-B) color index (Note 2)   (phot.color;em.opt.U;em.opt.B)
e_U-B 0.141 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 0.522 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 0.124 mag The (V-r') color index (phot.color;em.opt.V;em.opt.R)
e_V-r 0.011 mag The 1σ error in V-r (stat.error)
o_V-r7  Number of V-r observations (meta.number)
V-i 0.249 mag The (V-i') color index (phot.color;em.opt.V;em.opt.I)
e_V-i 0.011 mag The 1σ error in V-i (stat.error)
o_V-i7  Number of V-i observations (meta.number)
  
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