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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=== 4 982 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)
_RAJ200000 09 37.4160673 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+04 35 09.907515 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 07 03.6277826 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+04 18 31.570809 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon103.6905675386 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-56.7153020074 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
299recno 299  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC 4 982 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms00 09 37.44  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+04 35 10.5  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag10.15 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS002.40601976 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS+04.58624365 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx -86.70 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -49.00 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -65.10 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 32.30 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 25.10 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 32.50 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 31.00 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 25.30 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 0.05   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.06   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.43   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE-0.16   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.08   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA-0.15   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.46   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.02   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.19   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro 98   Number of transits for astrometry (T29) (meta.number)
F2-0.86   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP   (i) Hipparcos HIP number (T31) (meta.id)
BTmag11.849 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.152 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag10.295 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.055 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 1.303 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.146 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 7.7   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto 91   Number of transits for photometry (T43) (meta.number)
VTscat 0.452 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 9.84 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin11.10 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)
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.code)
m_HIP   CCDM component identifier (T51) (meta.code.multip)
PPM143201   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD    [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB+03 9  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.icrs002.40590028 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+04.58608542 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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