VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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I/239/tyc_main The Hipparcos and Tycho Catalogues (ESA 1997)
ReadMe+ftp

The main part of Tycho Catalogue
timeSerie
(1058332 rows) 		  TYC=6846-1128-1
Post annotation about this record

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)
_RAJ200018 05 10.5528490 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-24 23 54.848182 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 02 06.4391985 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-24 24 10.645155 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon006.1212488780 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-01.4819026911 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
706207recno 706207  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
TYC6846 1128 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms18 05 10.55  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-24 23 54.8  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 6.84 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS271.29395339 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra;meta.main)
DEICRS-24.39856262 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 7.90 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA 6.30 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -2.60 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 6.50 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 4.60 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 6.20 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 6.50 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 5.00 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA-0.31   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA-0.59   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE 0.18   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.52   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.25   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx 0.31   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.26   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE-0.67   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.06   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA-0.02   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro 50   Number of transits for astrometry (T29) (meta.number)
F2-0.24   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP 88581  (i) Hipparcos HIP number (T31) (meta.id)
BTmag 6.929 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.009 mag Standard error in BTmag (T33) (stat.error;phot.mag)
VTmag 6.849 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.013 mag Standard error in VTmag (T35) (stat.error;phot.mag)
r_BTmagM   [DMNT] Source of photometry (Note T36)   (meta.ref)
B-V 0.068 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 0.014 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q2   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs 9.8   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto 84   Number of transits for photometry (T43) (meta.number)
VTscat 0.094 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 6.76 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin 6.95 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)
VarFlagW   [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)
PPM267822   [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD165052   [1/359083] HD cat. III/135 (T53) (meta.id.cross)
BD   Bonner DM I/119, I/122 (T54) (meta.id.cross)
CoDC-24 13864  Cordoba DM I/114 (T55) (meta.id.cross)
CPDP-24 6201  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.icrs271.29397020 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-24.39856894 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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