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I/239/tyc_main The Hipparcos and Tycho Catalogues (ESA 1997)
The main part of Tycho Catalogue
timeSerie
(1058332 rows)
  recno=161838
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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)
_RAJ200003 45 41.4255849 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+24 17 18.713880 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195003 42 42.4776502 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+24 08 02.773865 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon166.2030331047 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-23.5941526989 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
161838recno 161838  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC1799 978 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms03 45 41.38  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+24 17 19.4  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 9.91 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_VmagT   [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS056.42240021 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS+24.28871271 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx -36.10 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA 77.40 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -74.50 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 26.30 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 16.00 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 28.30 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 35.60 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 22.50 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.20   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.42   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.16   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.25   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.17   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.12   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.18   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.22   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.07   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.03   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro 63   Number of transits for astrometry (T29) (meta.number)
F2-1.49   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP   (i) Hipparcos HIP number (T31) (meta.id)
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 9.906 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.045 mag Standard error in VTmag (T35) (stat.error;phot.mag;em.opt.V)
r_BTmagT   [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)
Q4   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs 7.6   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto 63   Number of transits for photometry (T43) (meta.number)
VTscat  mag Estimate of VTmag scatter (T44) (stat.error)
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)   (meta.code;src.var)
VarFlag    [UVW] Variability from Tycho (Note T48)   (src.var)
MultFlagY   [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)
PPM 92837   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD282969   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB+23 513  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)
RemarkM   [JKLM] Notes (Note T57)   (meta.note)

EpPhotEpPhot  Tycho (and Hipparcos) Epoch Photometry, directly available for A, B and b types (meta.ref.url)
_RA.icrs056.42260660 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+24.28853163 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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