VizieR

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VizieR

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J/AJ/131/2478/table4 M31 and M33 UBVRI photometry (Massey+, 2006)
M31 Catalog (371781 rows)
  recno=77892
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ColumnValue  Explain   (UCD)
_RAJ200000 41 27.3200 "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+41 10 10.500 "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)
_RAB195000 38 43.4343 "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+40 53 43.957 "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)
_Glon120.9107339 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-21.6629860 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)
77892recno 77892  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
n_LGGS   S indicates that spectroscopic data are available in table8 (meta.ref.url)

LGGSJ004127.32+411010.5  (i) LGGS designation, JHHMMSS.ss+DDMMSS.s (meta.id;meta.main)
Vmag19.427 mag Johnson V magnitude (phot.mag;em.opt.V)
e_Vmag 0.005 mag V error (stat.error;phot.mag;em.opt.V)
B-V 1.279 mag Johnson B-V magnitude (phot.color;em.opt.B;em.opt.V)
e_B-V 0.010 mag B-V error (stat.error;phot.color;em.opt.B)
U-B 1.088 mag Johnson U-B colour index (phot.color;em.opt.U;em.opt.B)
e_U-B 0.017 mag U-B error (stat.error;phot.color;em.opt.U)
V-R 0.626 mag Kron-Cousins V-R colour index (phot.color;em.opt.V;em.opt.R)
e_V-R 0.006 mag V-R error (stat.error;phot.color;em.opt.V)
R-I 0.504 mag Kron-Cousins R-I colour index (phot.color;em.opt.R;em.opt.I)
e_R-I 0.005 mag R-I error (stat.error;phot.color;em.opt.R)
nV 5  Number of V measurements (meta.number)
nB 5  Number of B measurements (meta.number)
nU 5  Number of U measurements (meta.number)
nR 5  Number of R measurements (meta.number)
nI 5  Number of I measurements (meta.number)
SpType   MK Spectral Type (if available) (src.spType)
r_SpType   References for spectal type, in refs.dat file (meta.ref;pos.frame)
RAJ200000 41 27.32 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+41 10 10.5 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  
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