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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===4374 2122 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)
_RAJ200008 14 16.3008256 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+68 55 19.469134 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195008 09 16.5463787 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+69 04 39.558798 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon146.4641054570 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+32.5921400726 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
475494recno 475494  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC4374 2122 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms08 14 16.31  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+68 55 22.1  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag11.07 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS123.56794714 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS+68.92281219 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx -66.30 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA -4.00 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -303.40 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 20.40 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 26.00 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 32.10 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 29.60 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 36.80 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA 0.23   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.01   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE 0.11   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA 0.20   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.01   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.05   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.01   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.13   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.11   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.38   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro224   Number of transits for astrometry (T29) (meta.number)
F2 1.53   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 40347  (i) Hipparcos HIP number (T31) (meta.id)
BTmag11.664 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.069 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag11.122 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.069 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 0.504 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.080 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 9.0   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto250   Number of transits for photometry (T43) (meta.number)
VTscat 0.779 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax10.42 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin13.62 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)
PPM    [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)
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.icrs123.56792011 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+68.92207476 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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