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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=== 197 37 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)
_RAJ200008 22 49.9640140 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+01 51 33.508168 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195008 20 14.4875084 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+02 01 16.501732 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon222.0658495512 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+21.1122493006 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
19236recno 19236  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC 197 37 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms08 22 49.98  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+01 51 34.0  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 8.69 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS125.70826194 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS+01.85943713 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 11.30 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -32.30 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -53.20 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 8.30 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 8.30 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 10.70 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 11.70 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 10.90 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.21   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.22   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.31   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA 0.17   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.10   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx-0.22   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.02   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.58   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.06   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA-0.14   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro108   Number of transits for astrometry (T29) (meta.number)
F2-0.18   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP   (i) Hipparcos HIP number (T31) (meta.id)
BTmag 9.453 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.018 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag 8.759 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.015 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 0.624 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.019 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q3   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs10.7   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto107   Number of transits for photometry (T43) (meta.number)
VTscat 0.159 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 8.61 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 8.90 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)
PPM154372   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD 70573   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB+02 1951  Bonner DM I/119, I/122 (T54) (meta.id.cross)
CoD   Cordoba DM I/114 (T55) (meta.id.cross)
CPD   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.icrs125.70818339 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+01.85930782 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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