VizieR

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VizieR

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J/ApJ/703/420/table6 Red supergiants in M31 (Massey+, 2009)
Derived bolometric luminosities for RSGs (154 rows)
  recno=123
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ColumnValue  Explain   (UCD)
_RAJ200020 21 21.8803 "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+36 55 55.771 "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)
_RAB195020 19 29.0484 "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+36 46 19.567 "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)
_Glon075.3196279 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+00.1118339 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)
123recno 123  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

GalMW  Galaxy name (LMC, M31, MW or SMC) (meta.id.parent)
NameBI Cyg  Star identification (meta.id;meta.main)
SpTM3-4 I  MK spectral type (src.spType)
AV 5.11 mag V band extinction (phys.absorption;em.opt.V)
Teff3575 K Effective temperature (phys.temperature.effective)
VMAG-6.78 mag Absolute V band magnitude (phys.magAbs;em.opt.V)
R11245 Rsun Radius from V band magnitude (phys.size.radius)
L1 5.36 [Lsun] Bolometric luminosity from V band magnitude (phys.luminosity)
KMAG-11.03 mag Absolute K band magnitude (phys.magAbs;em.IR.K)
R21000 Rsun Radius from K band magnitude (phys.size.radius)
L2 5.17 [Lsun] Bolometric luminosity from K band magnitude (phys.luminosity)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref)
_RA305.34117 deg (i) Position from Simbad (right ascension part) (pos.eq.ra;meta.main)
_DE+36.93216 deg (i) Position from Simbad (declination part) (pos.eq.dec;meta.main)
  
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