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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=340325
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ColumnValue  Explain   (UCD)
_RAJ200006 34 40.9951560 "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)
_DEJ2000-69 53 06.144864 "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)
_RAB195006 35 07.3774067 "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)
_DEB1950-69 50 34.156256 "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)
_Glon280.3387559791 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-26.7774727938 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)
340325recno 340325  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC19181  First part of Tycho-2 identifier (meta.id.part;meta.main)
TYC2 466  Second part of Tycho-2 identifier (meta.id.part;meta.main)
TYC31  Third part of Tycho-2 identifier (meta.id.part;meta.main)
RAJ2000098.67081315 deg (i) Right Ascension, J2000, decimal deg. (pos.eq.ra;meta.main)
DEJ2000-69.88504024 deg (i) Declination, J2000, decimal deg. (pos.eq.dec;meta.main)
VTmag 9.244 mag Tycho-2 VT magnitude (phot.mag;em.opt.V)
BTmag 9.991 mag Tycho-2 BT magnitude (phot.mag;em.opt.B)
r_SpTypemc1  Source of spectral type (Note 2)   (meta.ref)
Namehd 47875  Alternate designation for star (Note 3)   (meta.id)
Dist 0.372 arcsec Distance between Tycho object and spectral type match (Note 4)   (pos.angDistance)
Mag 9.70 mag Magnitude from SpType catalog (Note 5)   (phot.mag)
f_MagP   [VPBX*] Flag indicating type of magnitude (Note 6)   (meta.code.error)
TClassG  Temperature class (Note 7)   (src.spType)
SClass3   Temperature Subclass (Note 7)   (src.spType)
LClass5   Luminosity class in numeric form (Note 7)   (src.spType)
Teff 5860 K Effective temperature of the star, based on spectral type (Note G1)   (phys.temperature.effective)
SpType G3 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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