VizieR

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

VizieR

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I/350/tyc2tdsc Gaia EDR3 (Gaia Collaboration, 2020)
Tycho-2 merged with the TDSC catalog and TDSC supplement (2561887 rows)
  recno=558250
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ColumnValue  Explain   (UCD)
_RAJ200005 16 18.1484637624 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+34 18 44.407015997 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195005 12 59.7681320336 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+34 15 25.225631821 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon172.0813995059360 deg Galactic longitude at Epoch=J1990, proper motions taken into account (pos.galactic.lon)
_Glat -2.2592889653616 deg Galactic latitude at Epoch=J1990, proper motions taken into account (pos.galactic.lat)
558250recno 558250  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

IDTyc22398-894-1  (i) Tycho-2 identifier (TYC1-TYC2-TYC3) (id) (meta.id;meta.main)
HIP 24575  (i) Hipparcos number (hip) (meta.id.cross)
TYC1 2398  TYC1 component from TYC or GSC (tyc1) (meta.id.part;meta.main)
TYC2 894  TYC2 component from TYC or GSC (tyc2) (meta.id.part;meta.main)
TYC3 1  TYC2 component from TYC or GSC (tyc3) (meta.id.part;meta.main)
TYC2398008941  Numeric Tycho-2 identifier ((tyc1*1000000)+(tyc2*10)+(tyc3)) (id_tycho) (meta.id;meta.dataset)
IDTyc1T  Tycho-1 star (tyc) (meta.code)
RAT 79.07563306000 deg (i) Observed Tycho-2 Right Ascension (ICRS) at epoch 1990+EpRA1990 (ra) (pos.eq.ra;meta.main)
e_RAT 3.4 mas Uncertainty RA*cos(dec), of observed Tycho-2 RA (eradeg) (stat.error)
DET+34.31221306000 deg (i) Observed Tycho-2 Declination (ICRS) at epoch 1990+EpDE1990 (dec) (pos.eq.dec;meta.main)
e_DET 4.0 mas Uncertainty of observed Tycho-2 Dec (ededeg) (stat.error)
RAmdeg 79.07562112000 deg Mean Right Ascension (ICRS) at Ep=J2000 (ra_mdeg) (pos.eq.ra)
e_RAmdeg 3.0 mas Uncertainty RA*cos(dec),at mean epoch (eramdeg) (stat.error)
DEmdeg+34.31231789000 deg Mean Declination (ICRS) at Ep=J2000 (de_mdeg) (pos.eq.dec)
e_DEmdeg 4.0 mas Uncertainty of Dec at mean epoch (edemdeg) (stat.error)
pmRA -4.3 mas/yr (i) Proper motion in right ascension, pmRA*cos(DE) (pm_ra) (pos.pm;pos.eq.ra)
e_pmRA 0.9 mas/yr Uncertainty proper motion in RA*cos(dec) (epmra) (stat.error;pos.pm;pos.eq.ra)
pmDE 44.0 mas/yr (i) Proper motion in Declination (pm_de) (pos.pm;pos.eq.dec)
e_pmDE 1.0 mas/yr Uncertainty of proper motion in Dec (epmde) (stat.error;pos.pm;pos.eq.dec)
EpRA1990 1.80 yr Epoch-1990 of RAdeg (ep_ra1990) (time.epoch)
EpDE1990 1.42 yr Epoch-1990 of DEdeg (ep_de1990) (time.epoch)
EpRAmdeg1991.62 yr Mean epoch of RAmdeg (epram) (time.epoch)
EpDEmdeg1991.14 yr Mean epoch of DEmdeg (epdem) (time.epoch)
Num16   Number of positions used for forming mean data (num) (meta.number)
Corr-0.1   Correlation (RAdeg,DEdeg) (corr) (stat.correlation;pos.eq.ra;pos.eq.dec)
q_RAmdeg 1.3   Goodness of fit for mean RA (qramdeg) (meta.code.qual)
q_DEmdeg 0.8   Goodness of fit for mean DE (qdemdeg) (meta.code.qual)
q_pmDE 0.7   Goodness of fit for pmDe (qpmde) (meta.code.qual)
q_pmRA 1.3   Goodness of fit for pmRa (qpmra) (meta.code.qual)
pflag   Mean position flag (pflag) (meta.code)
posflg   Type of Tycho-2 solution (posflg) (meta.id;stat.fit)
CCDM   CCDM component identifier for HIP stars (ccdm) (meta.code.multip)
prox999   Proximity indicator (prox) (meta.code)
BTmag 6.237 mag Tycho-2 BT magnitude (bt_mag) (phot.mag;em.opt.B)
e_BTmag 0.014 mag Uncertainty of BTmag (ebtmag) (stat.error)
VTmag 6.025 mag Tycho-2 VT magnitude (vt_mag) (phot.mag;em.opt.V)
e_VTmag 0.009 mag Uncertainty of VTmag (evtmag) (stat.error)
TDSC11272  (i) TDSC identifier for the system (sys_no) (meta.id)
cmpA  Component designation (cmp) (meta.id.part)
Nmain 1   Number of components in TDSC main catalogue (n_main) (meta.number)
Nsup0   Number of components in the TDSC supplement (n_sup) (meta.number)
magflg   TDSC photometry flag (magflg) (meta.code)
WDS05163+3419  (i) WDS identifier for the system (wds) (meta.id.cross)
Note   TDSC notes (note) (meta.note)
HD 34078   HD identifier for TDSC entries (hd) (meta.id.cross)
rcmp   Reference component for position angle and separation (rcmp) (meta.id.assoc)
PA  deg Position angle of the present component (cmp) with respect to the reference component (rcmp) (pa) (pos.posAng)
e_PA  deg Uncertainty of the position angle (e_pa) (stat.error)
Sep  arcsec Separation of the present component (cmp) with respect to the reference component (rcmp) (sep) (pos.angDistance)
e_Sep  mas Uncertainty of the separation (e_sep) (stat.error)
e_PA.Sep    Uncertainty of the position angle * separation (epasep) (stat.error)

_RA.icrs 79.07561859901 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+34.31233528222 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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