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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===3691 1782 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 35 17.1437418 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+56 08 46.375005 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 31 41.9071496 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+55 55 31.304892 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon137.0799137435 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-03.8467390736 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
395243recno 395243  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC3691 1782 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms02 35 17.16  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+56 08 44.7  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag11.11 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS038.82148985 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS+56.14575080 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 85.60 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -13.20 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE 191.10 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 53.80 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 61.30 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 83.30 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 66.00 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 82.90 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.04   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA-0.04   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE 0.08   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.19   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.01   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.36   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA-0.10   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.03   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.17   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.33   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro 59   Number of transits for astrometry (T29) (meta.number)
F2 0.76   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP   (i) Hipparcos HIP number (T31) (meta.id)
BTmag13.489 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.815 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag11.317 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.194 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  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)
Q5   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs 5.3   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto126   Number of transits for photometry (T43) (meta.number)
VTscat 0.932 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax10.41 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)
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)
PPM    [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD    [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BD   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.icrs038.82143226 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+56.14621528 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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