VizieR

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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=301632
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ColumnValue  Explain   (UCD)
_RAJ200016 41 40.2262872 "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)
_DEJ2000-49 39 05.608332 "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)
_RAB195016 37 52.6867977 "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)
_DEB1950-49 33 21.843291 "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)
_Glon336.0794528266 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-02.2013479369 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)
301632recno 301632  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC18334  First part of Tycho-2 identifier (meta.id.part;meta.main)
TYC2 1208  Second part of Tycho-2 identifier (meta.id.part;meta.main)
TYC31  Third part of Tycho-2 identifier (meta.id.part;meta.main)
RAJ2000250.41760953 deg (i) Right Ascension, J2000, decimal deg. (pos.eq.ra;meta.main)
DEJ2000-49.65155787 deg (i) Declination, J2000, decimal deg. (pos.eq.dec;meta.main)
VTmag 5.640 mag Tycho-2 VT magnitude (phot.mag;em.opt.V)
BTmag 5.596 mag Tycho-2 BT magnitude (phot.mag;em.opt.B)
r_SpTypemc2  Source of spectral type (Note 2)   (meta.ref)
Namehd 150168  Alternate designation for star (Note 3)   (meta.id)
Dist 0.032 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_MagP   [VPBX*] Flag indicating type of magnitude (Note 6)   (meta.code.error)
TClassB  Temperature class (Note 7)   (src.spType)
SClass1   Temperature Subclass (Note 7)   (src.spType)
LClass1   Luminosity class in numeric form (Note 7)   (src.spType)
Teff20800 K Effective temperature of the star, based on spectral type (Note G1)   (phys.temperature.effective)
SpType B1 IAB/IB  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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