VizieR

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VizieR

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J/AJ/154/259/table2 Fundamental parameters of Tycho-2 & TGAS stars (Stevens+, 2017)
Catalog Photometry for 1600080 Tycho-2 Stars in Initial Iterative-color Technique Sample (524221 rows)
  recno=269381
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ColumnValue  Explain   (UCD)
_RAJ200000 31 08.1902664 "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+10 02 06.784008 "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)
_RAB195000 28 32.9080266 "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+09 45 33.260842 "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)
_Glon114.7025451709 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-52.5118444470 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)
269381recno 269381  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC606-1089-1  (i) Tycho-2 identifier (TYC FFFF-NNNNN-N) (meta.id;meta.main)
RAJ2000007.78412611 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000+10.03521778 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
BTmag 12.933 mag [3.296/16.227] Tycho-2 catalog BT band magnitude (Note 1)   (phot.mag;em.opt.B)
e_BTmag 0.304 mag [0.014/1.686] Uncertainty in BTmag (stat.error;phot.mag;em.opt.B)
VTmag12.042 mag [2.139/14.44] Tycho-2 catalog VT band magnitude (Note 1)   (phot.mag;em.opt.V)
e_VTmag 0.216 mag [0.009/0.899] Uncertainty in BTmag (stat.error;phot.mag;em.opt.V)
Jmag 10.068 mag [-0.245/15.767] 2MASS J band magnitude (Note 2)   (phot.mag;em.IR.J)
e_Jmag 0.024 mag [0.016/9.998] Uncertainty in Jmag (stat.error;phot.mag;em.IR.J)
Hmag 9.543 mag [-1.034/15.297] 2MASS H band magnitude (Note 2)   (phot.mag;em.IR.H)
e_Hmag 0.022 mag [0.013/9.998] Uncertainty in Hmag (stat.error;phot.mag;em.IR.H)
Ksmag 9.448 mag [-1.162/15.015] 2MASS Ks band magnitude (Note 2)   (phot.mag;em.IR.K)
e_Ksmag 0.021 mag [0.011/9.998] Uncertainty in Ksmag (stat.error;phot.mag;em.IR.K)
Bmag  mag [2.567/13.449] B band magnitude (Note 3)   (phot.mag;em.opt.B)
e_Bmag  mag Uncertainty in Bmag (stat.error;phot.mag;em.opt.B)
Vmag  mag [2.036/12.655] V band magnitude (Note 3)   (phot.mag;em.opt.V)
e_Vmag  mag [0/0.7] Uncertainty in Vmag (stat.error;phot.mag;em.opt.V)
ymag  mag [2.19/12.804] Stromgren y band magnitude (Note 4)   (phot.mag;em.opt.V)
e_ymag  mag [0/1.098] Uncertainty in ymag (stat.error;phot.mag;em.opt.V)
bmag  mag [3.066/13.204] Stromgren b band magnitude (Note 4)   (phot.mag;em.opt.B)
e_bmag  mag [0/1.11186] Uncertainty in bmag (stat.error;phot.mag;em.opt.B)
  
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