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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===4669 136 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 08 51.3813887 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-05 12 31.428934 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 06 18.0591904 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-05 29 14.503994 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon096.2140190178 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-65.8469852172 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
503901recno 503901  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC4669 136 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms00 08 51.42  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-05 12 31.7  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag10.25 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS002.21425972 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS-05.20879394 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx -27.10 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -69.90 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE 26.20 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 43.10 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 30.30 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 50.50 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 55.00 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 38.10 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA 0.17   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.36   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.11   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.20   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE-0.20   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.25   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA-0.14   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.24   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.02   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.01   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro101   Number of transits for astrometry (T29) (meta.number)
F2 1.44   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP   (i) Hipparcos HIP number (T31) (meta.id)
BTmag12.298 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.207 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag10.431 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.059 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 1.555 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.223 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 6.9   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto102   Number of transits for photometry (T43) (meta.number)
VTscat 0.503 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 9.90 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin11.51 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)
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)
PPM181903   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD    [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB-06 6  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.icrs002.21408912 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-05.20873026 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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