VizieR

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VizieR

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J/A+A/537/A120/table1 Rotational velocities of A-type stars. IV. (Zorec+, 2012)
Fundamental parameters for 2014 B6 to F2-type stars (2014 rows)
  recno=490
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ColumnValue  Explain   (UCD)
_RAJ200005 41 20.9771 "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+29 29 14.696 "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)
_RAB195005 38 09.6254 "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+29 27 46.315 "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)
_Glon179.0416778 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-00.5037619 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)
490recno 490  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HD 37646  Star HD number (meta.id;meta.main)
SpTypeB8IV  MK spectral type (src.spType)
logT 4.100 [K] Logarithmic effective temperature (phys.temperature.effective)
e_logT 0.003 [K] Error on logT (stat.error)
logL 2.2470 [Lsun] Logarithmic luminosity (phys.luminosity)
e_logL 0.1450 [Lsun] Error on logL (stat.error)
Mass 3.43 Msun Stellar mass (phys.mass)
e_Mass 0.20 Msun Error on the stellar mass (stat.error;phys.mass)
Age 0.506  Fractional age on the main sequence (time.age;meta.main)
e_Age 0.199  Error on the fractional age (stat.error;time.age)
vsini148 km/s Projected rotational velocity (phys.veloc.rotat)
r_vsini 8  Source of vsini (Note 1)   (meta.ref)
Class   Classification of the star: blank=normal, CB=Close binary, CP=chemically peculiar (meta.code.class)

SimbadSimbad  ask the Simbad data-base about this object
_RA085.33740 deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
_DE+29.48742 deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)
  
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