I/239/tyc_main | The Hipparcos and Tycho Catalogues (ESA 1997) The main part of Tycho Catalogue timeSerie (1058332 rows) | TYC===2165 1026 1 |
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]
Column | Value | Explain (UCD) | |
_RAJ2000 | 20 36 32.0139989 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) |
_DEJ2000 | +26 36 14.504637 | "d:m:s" | Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) |
_RAB1950 | 20 34 24.2395577 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) |
_DEB1950 | +26 25 45.898487 | "d:m:s" | Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) |
_Glon | 068.7691893481 | deg | Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon) |
_Glat | -08.5141459176 | deg | Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat) |
199504recno | 199504 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
TYC | 2165 1026 1 | (i) TYC1-3 (TYC number) (Note T1) (meta.id;meta.main) | |
Proxy | [HT] Proximity flag (T2) (meta.code) | ||
RAhms | 20 36 32.02 | Right ascension in h m s, ICRS (J1991.25) (T3) (pos.eq.ra) | |
DEdms | +26 36 14.6 | Declination in deg ' ", ICRS (J1991.25) (T4) (pos.eq.dec) | |
Vmag | 8.52 | mag | Magnitude in Johnson V (T5) (phot.mag;em.opt.V) |
r_Vmag | [BDTV] Source of magnitude (Note T7) (meta.ref;pos.frame) | ||
RAICRS | 309.13342836 | deg | (i) alpha, degrees (ICRS, Epoch=J1991.25) (Note T8) (pos.eq.ra;meta.main) |
DEICRS | +26.60404292 | deg | (i) delta, degrees (ICRS, Epoch=J1991.25) (Note T9) (pos.eq.dec;meta.main) |
AstroRef | X | [X] Reference flag for astrometry (Note T10) (meta.bib) | |
Plx | 0.50 | mas | Trigonometric parallax (Note T11) (pos.parallax.trig) |
pmRA | -13.50 | mas/yr | Proper motion mu_alpha.cos(delta), ICRS (Note T12) (pos.pm;pos.eq.ra) |
pmDE | -5.70 | mas/yr | Proper motion mu_delta, ICRS (Note T13) (pos.pm;pos.eq.dec) |
e_RAICRS | 7.40 | mas | Standard error in RA*cos(delta) (Note T14) (stat.error;pos.eq.ra) |
e_DEICRS | 6.30 | mas | Standard error in DE (Note T15) (stat.error;pos.eq.dec) |
e_Plx | 9.60 | mas | Standard error in Plx (Note T16) (stat.error;pos.parallax) |
e_pmRA | 10.00 | mas/yr | Standard error in pmRA (Note T17) (stat.error;pos.pm;pos.eq.ra) |
e_pmDE | 7.50 | mas/yr | Standard error in pmDE (Note T18) (stat.error;pos.pm;pos.eq.dec) |
DE:RA | 0.03 | [-1/1] Correlation, DE/RA*cos(delta) (T19) (stat.correlation) | |
Plx:RA | 0.24 | [-1/1] Correlation, Plx/RA*cos(delta) (T20) (stat.correlation) | |
Plx:DE | -0.09 | [-1/1] Correlation, Plx/DE (T21) (stat.correlation) | |
pmRA:RA | -0.52 | [-1/1] Correlation, pmRA/RA*cos(delta) (T22) (stat.correlation) | |
pmRA:DE | -0.01 | [-1/1] Correlation, pmRA/DE (T23) (stat.correlation) | |
pmRA:Plx | -0.13 | [-1/1] Correlation, pmRA/Plx (T24) (stat.correlation) | |
pmDE:RA | 0.03 | [-1/1] Correlation, pmDE/RA*cos(delta) (T25) (stat.correlation) | |
pmDE:DE | -0.29 | [-1/1] Correlation, pmDE/DE (T26) (stat.correlation) | |
pmDE:Plx | 0.31 | [-1/1] Correlation, pmDE/Plx (T27) (stat.correlation) | |
pmDE:pmRA | 0.09 | [-1/1] Correlation, pmDE/pmRA (T28) (stat.correlation) | |
Nastro | 176 | Number of transits for astrometry (T29) (meta.number) | |
F2 | -1.12 | Goodness-of-fit parameter (Note T30) (stat.fit.goodness) | |
HIP | (i) Hipparcos HIP number (T31) (meta.id) | ||
BTmag | 9.889 | mag | Mean BT magnitude (T32) (phot.mag;em.opt.B) |
e_BTmag | 0.029 | mag | Standard error in BTmag (T33) (stat.error;phot.mag) |
VTmag | 8.642 | mag | Mean VT magnitude (T34) (phot.mag;em.opt.V) |
e_VTmag | 0.017 | mag | Standard error in VTmag (T35) (stat.error;phot.mag) |
r_BTmag | N | [DMNT] Source of photometry (Note T36) (meta.ref) | |
B-V | 1.061 | mag | Johnson B-V colour (T37) (phot.color;em.opt.B;em.opt.V) |
e_B-V | 0.027 | mag | Standard error on B-V (T38) (stat.error;phot.color;em.opt.B) |
Q | 2 | Astrometric quality flag, Q (Note T40) (meta.code.qual) | |
Fs | 13.6 | Signal-to-noise ratio of the star image(T41) (meta.note) | |
Source | [HPR] Source of astrometric data (Note T42) (meta.bib) | ||
Nphoto | 87 | Number of transits for photometry (T43) (meta.number) | |
VTscat | 0.260 | mag | Estimate of VTmag scatter (T44) (stat.error) |
VTmax | 8.32 | mag | VTmag at maximum (15th percentile) (T45) (phot.mag;em.opt.V) |
VTmin | 9.13 | mag | VTmag at minimum (85th percentile) (T46) (phot.mag;em.opt.V) |
Var | G | [GN] Known variability from GCVS/NSV (Note T47) (meta.code;src.var) | |
VarFlag | U | [UVW] Variability from Tycho (Note T48) (src.var) | |
MultFlag | S | [DRSYZ] Duplicity from Tycho (Note T49) (meta.code.multip) | |
morePhoto | A | 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 | 111489 | [1/789676] PPM and Supplement (Note T52) (meta.id.cross) | |
HD | 340667 | [1/359083] HD cat. III/135 (T53) (meta.id.cross) | |
BD | B+26 3937 | 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) | ||
EpPhot | EpPhot | Tycho (and Hipparcos) Epoch Photometry, directly available for A, B and b types (meta.ref.url) | |
_RA.icrs | 309.13339166 | deg | (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra) |
_DE.icrs | +26.60402907 | deg | (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec) |
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