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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===1869 200 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)
_RAJ200005 38 54.5803955 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+26 18 56.837487 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195005 35 47.9532893 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+26 17 18.180208 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon181.4450310713 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-02.6435206246 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
166341recno 166341  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC1869 200 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms05 38 54.58  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms+26 18 56.9  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 9.18 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS084.72739852 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra)
DEICRS+26.31579767 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec)
AstroRef    [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx -18.60 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA 7.30 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -3.90 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 17.40 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 11.70 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 20.20 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 13.40 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 11.70 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.01   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA 0.63   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE-0.18   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA 0.20   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.43   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.02   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.21   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.51   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.22   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.08   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro103   Number of transits for astrometry (T29) (meta.number)
F2 0.39   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 26566  (i) Hipparcos HIP number (T31) (meta.id)
BTmag 9.783 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.028 mag Standard error in BTmag (T33) (stat.error;phot.mag;em.opt.B)
VTmag 9.237 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.026 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 0.508 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.031 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q3   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs10.4   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto 66   Number of transits for photometry (T43) (meta.number)
VTscat 0.161 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 9.04 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 9.46 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)
PPM 94608   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD245770   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BDB+26 883  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.icrs084.72741831 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+26.31578819 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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