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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=== 230 1035 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)
_RAJ200009 12 12.8775019 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+03 52 01.135731 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195009 09 36.2092166 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+04 04 22.852433 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon226.8591069044 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+32.8560104538 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
22204recno 22204  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC 230 1035 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms09 12 12.91  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+03 52 01.2  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 6.14 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS138.05379609 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra;meta.main)
DEICRS+03.86698871 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec;meta.main)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 14.00 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -57.40 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -2.70 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 3.00 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 1.60 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 3.80 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 3.30 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 1.50 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.45   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.46   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.30   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.42   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.31   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx-0.59   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.25   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.04   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx 0.16   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA-0.44   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro144   Number of transits for astrometry (T29) (meta.number)
F2-0.15   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 45167  (i) Hipparcos HIP number (T31) (meta.id)
BTmag 6.135 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.003 mag Standard error in BTmag (T33) (stat.error;phot.mag)
VTmag 6.137 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.004 mag Standard error in VTmag (T35) (stat.error;phot.mag)
r_BTmagM   [DMNT] Source of photometry (Note T36)   (meta.ref)
B-V-0.004 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.004 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q1   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs12.1   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 0.041 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 6.10 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 6.18 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)
PPM155539   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD 79108   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB+04 2139  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.icrs138.05365626 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+03.86698215 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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