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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===4962 550 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)
_RAJ200013 26 01.9886691 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-03 22 43.305450 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 23 26.8901805 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-03 07 09.488827 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon319.5659058128 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+58.3713132779 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
533246recno 533246  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC4962 550 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms13 26 01.99  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-03 22 43.4  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 9.69 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS201.50831193 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS-03.37872950 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 1.50 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -10.60 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE 13.80 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 21.20 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 16.40 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 26.20 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 23.40 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 17.20 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.30   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.32   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.35   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA 0.01   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE-0.10   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.20   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA-0.12   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.24   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.27   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA-0.21   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro105   Number of transits for astrometry (T29) (meta.number)
F2 1.83   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 65531  (i) Hipparcos HIP number (T31) (meta.id)
BTmag10.511 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.047 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag 9.760 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.036 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 0.670 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.048 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 9.6   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto 77   Number of transits for photometry (T43) (meta.number)
VTscat 0.295 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 9.44 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin10.23 mag VTmag at minimum (85th percentile) (T46) (phot.mag;em.opt.V)
VarG   [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)
morePhotoA  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)
PPM196502   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD116802   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB-02 3683  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.icrs201.50828612 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-03.37869596 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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