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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===5804 1727 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)
_RAJ200022 18 49.3329411 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-09 12 58.043671 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195022 16 10.8311151 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-09 27 57.931231 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon052.0517875660 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-49.8039406751 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
599773recno 599773  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC5804 1727 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms22 18 49.34  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-09 12 57.4  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 9.52 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS334.70557165 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS-09.21593536 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 0.20 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -7.20 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -77.30 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 16.50 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 16.30 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 19.50 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 17.70 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 17.40 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA 0.06   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.29   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.19   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA 0.01   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE-0.02   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.20   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.01   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.00   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.03   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.14   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro 67   Number of transits for astrometry (T29) (meta.number)
F2 0.66   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP   (i) Hipparcos HIP number (T31) (meta.id)
BTmag10.107 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.044 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag 9.569 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.045 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 0.501 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.051 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q3   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs 7.4   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto 43   Number of transits for photometry (T43) (meta.number)
VTscat 0.216 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 9.32 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 9.92 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)
PPM206214   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD211673   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB-09 5953  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.icrs334.70555392 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-09.21612324 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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