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=21632
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ColumnValue  Explain   (UCD)
_RAJ200022 25 16.6226232 "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+01 22 38.630244 "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)
_RAB195022 22 43.4351798 "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+01 07 23.202274 "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)
_Glon066.0067143826 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-44.7394359029 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)
21632recno 21632  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC1 560  First part of Tycho-2 identifier (meta.id.part;meta.main)
TYC2 1818  Second part of Tycho-2 identifier (meta.id.part;meta.main)
TYC31  Third part of Tycho-2 identifier (meta.id.part;meta.main)
RAJ2000336.31926093 deg (i) Right Ascension, J2000, decimal deg. (pos.eq.ra;meta.main)
DEJ2000+01.37739729 deg (i) Declination, J2000, decimal deg. (pos.eq.dec;meta.main)
VTmag 4.760 mag Tycho-2 VT magnitude (phot.mag;em.opt.V)
BTmag 4.568 mag Tycho-2 BT magnitude (phot.mag;em.opt.B)
r_SpTypemc5  Source of spectral type (Note 2)   (meta.ref)
Namehd 212571  Alternate designation for star (Note 3)   (meta.id)
Dist 0.154 arcsec Distance between Tycho object and spectral type match (Note 4)   (pos.angDistance)
Mag 4.42 mag Magnitude from SpType catalog (Note 5)   (phot.mag)
f_MagV   [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)
LClass5   Luminosity class in numeric form (Note 7)   (src.spType)
Teff25400 K Effective temperature of the star, based on spectral type (Note G1)   (phys.temperature.effective)
SpType B1 Vnep  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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