VizieR

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

VizieR

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

The main part of Tycho Catalogue
timeSerie
(1058332 rows) 		  TYC===8639 2315 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)
_RAJ200011 50 18.3895605 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-57 10 55.602091 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195011 47 47.7393688 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-56 54 06.773513 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon294.6900377873 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+04.7084428823 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
933826recno 933826  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
TYC8639 2315 1  (i) TYC1-3 (TYC number) (Note T1)   (meta.id;meta.main)
Proxy    [HT] Proximity flag (T2) (meta.code)
RAhms11 50 18.07  Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra)
DEdms-57 10 54.3  Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec)
Vmag 9.98 mag Magnitude in Johnson V (T5) (phot.mag;em.opt.V)
r_Vmag    [BDTV] Source of magnitude (Note T7)   (meta.ref;pos.frame)
RAICRS177.57528943 deg (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8)   (pos.eq.ra;meta.main)
DEICRS-57.18174906 deg (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9)   (pos.eq.dec;meta.main)
AstroRefX   [X] Reference flag for astrometry (Note T10)   (meta.bib)
Plx 42.10 mas Trigonometric parallax (Note T11)   (pos.parallax.trig)
pmRA 297.40 mas/yr Proper motion mu_alpha.cos(delta), ICRS (Note T12)   (pos.pm;pos.eq.ra)
pmDE -149.20 mas/yr Proper motion mu_delta, ICRS (Note T13)   (pos.pm;pos.eq.dec)
e_RAICRS 45.00 mas Standard error in RA*cos(delta) (Note T14)   (stat.error;pos.eq.ra)
e_DEICRS 44.20 mas Standard error in DE (Note T15)   (stat.error;pos.eq.dec)
e_Plx 55.20 mas Standard error in Plx (Note T16)   (stat.error;pos.parallax)
e_pmRA 58.60 mas/yr Standard error in pmRA (Note T17)   (stat.error;pos.pm;pos.eq.ra)
e_pmDE 47.60 mas/yr Standard error in pmDE (Note T18)   (stat.error;pos.pm;pos.eq.dec)
DE:RA 0.15   [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation)
Plx:RA-0.19   [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation)
Plx:DE 0.28   [-1/1] Correlation, Plx/DE (T21) (stat.correlation)
pmRA:RA-0.05   [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation)
pmRA:DE 0.06   [-1/1] Correlation, pmRA/DE (T23) (stat.correlation)
pmRA:Plx-0.26   [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation)
pmDE:RA 0.12   [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation)
pmDE:DE 0.09   [-1/1] Correlation, pmDE/DE (T26) (stat.correlation)
pmDE:Plx-0.13   [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation)
pmDE:pmRA 0.34   [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation)
Nastro102   Number of transits for astrometry (T29) (meta.number)
F2 6.19   Goodness-of-fit parameter (Note T30)   (stat.fit.goodness)
HIP   (i) Hipparcos HIP number (T31) (meta.id)
BTmag13.298 mag Mean BT magnitude (T32) (phot.mag;em.opt.B)
e_BTmag 0.651 mag Standard error in BTmag (T33) (stat.error;phot.mag)
VTmag10.270 mag Mean VT magnitude (T34) (phot.mag;em.opt.V)
e_VTmag 0.071 mag Standard error in VTmag (T35) (stat.error;phot.mag)
r_BTmagN   [DMNT] Source of photometry (Note T36)   (meta.ref)
B-V 2.542 mag Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V)
e_B-V 1.590 mag Standard error on B-V (T38) (stat.error;phot.color;em.opt.B)
Q6   Astrometric quality flag, Q (Note T40)   (meta.code.qual)
Fs 5.2   Signal-to-noise ratio of the star image(T41) (meta.note)
Source    [HPR] Source of astrometric data (Note T42)   (meta.bib)
Nphoto119   Number of transits for photometry (T43) (meta.number)
VTscat 0.593 mag Estimate of VTmag scatter (T44) (stat.error)
VTmax 9.72 mag VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V)
VTmin11.28 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)
PPM    [1/789676] PPM and Supplement (Note T52)   (meta.id.cross)
HD102854   [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)
CPDP-56 4818  Cape Photographic DM I/108 (T56) (meta.id.cross)
RemarkJ   [JKLM] Notes (Note T57)   (meta.note)
EpPhotEpPhot  Tycho (and Hipparcos) Epoch Photometry, directly available for A, B and b types (meta.ref.url)
_RA.icrs177.57662317 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-57.18211169 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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