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I/239/tyc_main The Hipparcos and Tycho Catalogues (ESA 1997)
The main part of Tycho Catalogue
timeSerie
(1058332 rows)
  TYC===6434 1025 1
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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)
_RAJ200002 36 00.7792372 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-23 31 16.881661 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 33 44.9950860 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-23 44 19.072717 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon210.0785893809 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-66.1394373262 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
661216recno 661216  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC6434 1025 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms02 36 00.72  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-23 31 16.9  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 8.36 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS039.00301196 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS-23.52135942 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 41.90 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA 88.60 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE 1.40 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 8.50 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 7.60 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 10.40 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 10.80 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 9.30 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA 0.03   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.21   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.06   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA 0.09   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE-0.03   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.24   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.02   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.19   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.09   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.14   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro118   Number of transits for astrometry (T29) (meta.number)
F2 2.82   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 12110  (i) Hipparcos HIP number (T31) (meta.id)
BTmag 9.733 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.021 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag 8.478 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.013 mag Standard error in VTmag (T35) (stat.error;phot.mag;em.opt.V)
r_BTmagN   [DMNT] Source of photometry (Note T36)   (meta.ref)
B-V 1.068 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.020 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q3   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs10.9   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto101   Number of transits for photometry (T43) (meta.number)
VTscat 0.117 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 8.33 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 8.62 mag VTmag at minimum (85th percentile) (T46) (phot.mag;em.opt.V)
Var    [GN] Known variability from GCVS/NSV (Note T47)   (meta.code;src.var)
VarFlag    [UVW] Variability from Tycho (Note T48)   (src.var)
MultFlagZ   [DRSYZ] Duplicity from Tycho (Note T49)   (meta.code.multip)
morePhotoB  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.code)
m_HIP   CCDM component identifier (T51) (meta.code.multip)
PPM245182   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD 16270   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BD   Bonner DM I/119, I/122 (T54) (meta.id.cross)
CoDC-24 1154  Cordoba DM I/114 (T55) (meta.id.cross)
CPDP-24 295  Cape Photographic DM I/108 (T56) (meta.id.cross)
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.icrs039.00324682 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-23.52135602 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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