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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===7628 344 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)
_RAJ200006 53 03.7196408 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-38 58 22.463106 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195006 51 22.6423940 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-38 54 37.491208 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon248.8083674225 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-16.3729875429 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
790004recno 790004  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC7628 344 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms06 53 03.73  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-38 58 22.7  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 8.99 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS103.26553727 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS-38.97297496 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 6.30 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -12.40 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE 28.20 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 10.60 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 10.60 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 12.30 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 14.40 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 14.70 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.02   [-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 0.02   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.05   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE-0.02   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.00   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA-0.02   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.11   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.24   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.03   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro151   Number of transits for astrometry (T29) (meta.number)
F2 1.57   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 33045  (i) Hipparcos HIP number (T31) (meta.id)
BTmag10.618 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.038 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag 9.127 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.019 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 1.254 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.035 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q3   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs11.7   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto119   Number of transits for photometry (T43) (meta.number)
VTscat 0.218 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 8.90 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 9.34 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)
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)
PPM283233   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD 50833   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BD   Bonner DM I/119, I/122 (T54) (meta.id.cross)
CoDC-38 2992  Cordoba DM I/114 (T55) (meta.id.cross)
CPDP-38 1078  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.icrs103.26549850 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-38.97290642 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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