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I/239/tyc_main The Hipparcos and Tycho Catalogues (ESA 1997)
The main part of Tycho Catalogue
(1058332 rows)
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Note: Note that the errors on the proper motions are large (∼50mas/yr), and therefore the positions computed at an epoch different from 1991.25 have a large (∼0.4") uncertainty.
The Tycho Epoch Photometry data can be accessed from the morePhoto column (includes VT, BT and Hp photometric data for Hipparcos stars [filter responses]

ColumnValue  Explain   (UCD)
993101recno 993101  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC9007 5849 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.note)
Proxy    [HT] Proximity flag (T2) (meta.code.error)
RAhms14 39 40.90  (i) Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra;meta.main)
DEdms-60 50 06.5  (i) Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec;meta.main)
Vmag-0.01 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS219.92041034 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS-60.83514707 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRefX   [X] Reference flag for astrometry (Note T10)   (meta.note)
Plx  mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA  mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (;pos.eq.ra)
pmDE  mas/yr Proper motion mu_delta, ICRS (Note T13)   (;pos.eq.dec)
e_RAICRS  mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS  mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx  mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA  mas/yr Standard error in pmRA (Note T17)   (stat.error;;pos.eq.ra)
e_pmDE  mas/yr Standard error in pmDE (Note T18)   (stat.error;;pos.eq.dec)
DE:RA    [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA    [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE    [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA    [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (;pos.eq.ra)
pmRA:DE    [-1/1] Correlation, pmRA/DE (T23) (;pos.eq.ra)
pmRA:Plx    [-1/1] Correlation, pmRA/Plx (T24) (;pos.eq.ra)
pmDE:RA    [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (;pos.eq.dec)
pmDE:DE    [-1/1] Correlation, pmDE/DE (T26) (;pos.eq.dec)
pmDE:Plx    [-1/1] Correlation, pmDE/Plx (T27) (;pos.eq.dec)
pmDE:pmRA    [-1/1] Correlation, pmDE/pmRA (T28) (;pos.eq.dec)
Nastro    Number of transits for astrometry (T29) (meta.number)
F2    Goodness-of-fit parameter (Note T30)   (stat.param)
HIP 71683  (i) Hipparcos HIP number (T31) (;meta.main)
BTmag  mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag  mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag  mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag  mag Standard error in VTmag (T35) (stat.error;phot.mag;em.opt.V)
r_BTmag    [DMNT] Source of photometry (Note T36)   (meta.ref)
B-V  mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V  mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q    Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs    Signal-to-noise ratio of the star image(T41) (meta.note)
SourceH   [HPR] Source of astrometric data (Note T42)   (meta.ref;pos.frame)
Nphoto    Number of transits for photometry (T43) (meta.number)
VTscat  mag Estimate of VTmag scatter (T44) (stat.error;phot.mag;em.opt.V)
VTmax  mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin  mag VTmag at minimum (85th percentile) (T46) (phot.mag;em.opt.V)
Var    [GN] Known variability from GCVS/NSV (Note T47)   (src.var)
VarFlag    [UVW] Variability from Tycho (Note T48)   (src.var)
MultFlag    [DRSYZ] Duplicity from Tycho (Note T49)   (meta.code.multip)
morePhoto   Annex of Tycho Epoch photometry A or B, set to - for inaccessible B epoch photometry, b for reconstructed epoch photometry, c for added epoch photometry (meta.note;time.epoch)
m_HIPA  CCDM component identifier (T51) (meta.code.multip)
PPM    [1/789676] PPM and Supplement (Note T52)   (meta.note)
HD    [1/359083] HD cat. III/135 (T53) (meta.note)
BD   Bonner DM I/119, I/122 (T54) (
CoD   Cordoba DM I/114 (T55) (meta.note)
CPD   Cape Photographic DM I/108 (T56) (;spect.dopplerVeloc.opt;em.opt.I)
Remark    [JKLM] Notes (Note T57)   (meta.note)

EpPhotEpPhot  Tycho (and Hipparcos) Epoch Photometry, directly available for A, B and b types (meta.ref.url)
_RA.icrs219.92041034 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-60.83514707 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
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