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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=== 680 194 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)
_RAJ200004 23 32.3262577 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+14 40 13.803509 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195004 20 42.3955907 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+14 33 19.061612 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon180.5187333995 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-23.7260566167 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
57671recno 57671  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC 680 194 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms04 23 32.27  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+14 40 13.9  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 9.07 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS065.88444878 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra;meta.main)
DEICRS+14.67051969 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec;meta.main)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 30.10 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA 97.10 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -7.70 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 14.20 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 12.20 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 16.40 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 21.90 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 17.00 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.09   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.11   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.30   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.05   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE-0.07   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.33   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.06   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.26   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.19   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.07   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro 56   Number of transits for astrometry (T29) (meta.number)
F2-1.30   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 20492  (i) Hipparcos HIP number (T31) (meta.id)
BTmag10.266 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.048 mag Standard error in BTmag (T33) (stat.error;phot.mag)
VTmag 9.170 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.032 mag Standard error in VTmag (T35) (stat.error;phot.mag)
r_BTmagN   [DMNT] Source of photometry (Note T36)   (meta.ref)
B-V 0.942 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.047 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q3   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 46   Number of transits for photometry (T43) (meta.number)
VTscat 0.161 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 8.95 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 9.45 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)
PPM119843   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD 27771   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB+14 691  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.icrs065.88469274 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+14.67050097 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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