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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===7017 765 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 47 37.4564491 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-36 06 27.241118 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 45 36.1397445 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-36 18 55.834053 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon240.2264971085 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-63.8065798015 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
721709recno 721709  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC7017 765 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms02 47 37.44  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-36 06 27.2  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 9.99 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS041.90600506 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS-36.10754413 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx -12.50 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA 21.10 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -9.40 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 9.80 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 12.10 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 13.90 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 11.60 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 14.60 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.16   [-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 0.11   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.15   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.01   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.06   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.00   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.10   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.11   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA-0.10   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro230   Number of transits for astrometry (T29) (meta.number)
F2-0.35   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 13044  (i) Hipparcos HIP number (T31) (meta.id)
BTmag10.476 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.026 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag10.035 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.028 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 0.414 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.038 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q3   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs13.7   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto206   Number of transits for photometry (T43) (meta.number)
VTscat 0.376 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 9.67 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin10.59 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)
PPM278353   [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)
CoDC-36 1052  Cordoba DM I/114 (T55) (meta.id.cross)
CPDP-36 287  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.icrs041.90606854 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-36.10756698 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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