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VizieR

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III/231/catalog The Tycho-2 Spectral Type Catalog (Wright+, 2003)
Main Catalog (351863 rows)
  recno=69171
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ColumnValue  Explain   (UCD)
_RAJ200008 52 35.8124376 "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 19 50.956176 "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)
_RAB195008 49 35.5256899 "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 31 11.330094 "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)
_Glon196.7946453851 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+37.6988992975 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)
69171recno 69171  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC11949  First part of Tycho-2 identifier (meta.id.part;meta.main)
TYC2 2012  Second part of Tycho-2 identifier (meta.id.part;meta.main)
TYC31  Third part of Tycho-2 identifier (meta.id.part;meta.main)
RAJ2000133.14921849 deg (i) Right Ascension, J2000, decimal deg. (pos.eq.ra;meta.main)
DEJ2000+28.33082116 deg (i) Declination, J2000, decimal deg. (pos.eq.dec;meta.main)
VTmag 6.036 mag Tycho-2 VT magnitude (phot.mag;em.opt.V)
BTmag 7.037 mag Tycho-2 BT magnitude (phot.mag;em.opt.B)
r_SpTypek83  Source of spectral type (Note 2)   (meta.ref)
Namehd 75732  Alternate designation for star (Note 3)   (meta.id)
Dist 4.497 arcsec Distance between Tycho object and spectral type match (Note 4)   (pos.angDistance)
Mag 6.00 mag Magnitude from SpType catalog (Note 5)   (phot.mag)
f_MagV   [VPBX*] Flag indicating type of magnitude (Note 6)   (meta.code.error)
TClassG  Temperature class (Note 7)   (src.spType)
SClass8   Temperature Subclass (Note 7)   (src.spType)
LClass5   Luminosity class in numeric form (Note 7)   (src.spType)
Teff 5570 K Effective temperature of the star, based on spectral type (Note G1)   (phys.temperature.effective)
SpType G 8 V  Spectral Type (Note 1)   (src.spType)

Tycho-2Tycho-2  Display the Tycho-2 (II/259) data (meta.ref)
MKMK  Find out all spectral classifications in the neighbourhood of this position (meta.ref)
SimbadSimbad  ask the Simbad data-base about this object (meta.ref)
  
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