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=872863
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200011 27 50.3773312594 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+45 11 06.748015977 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195011 25 06.8265016710 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+45 27 38.819300853 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon160.1434627524550 deg Galactic longitude at Epoch=J1990, proper motions taken into account (pos.galactic.lon)
_Glat+65.4333573841671 deg Galactic latitude at Epoch=J1990, proper motions taken into account (pos.galactic.lat)
872863recno 872863  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

IDTyc23451-97-1  (i) Tycho-2 identifier (TYC1-TYC2-TYC3) (id) (meta.id;meta.main)
HIP 55936  (i) Hipparcos number (hip) (meta.id.cross)
TYC1 3451  TYC1 component from TYC or GSC (tyc1) (meta.id.part;meta.main)
TYC2 97  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)
TYC3451000971  Numeric Tycho-2 identifier ((tyc1*1000000)+(tyc2*10)+(tyc3)) (id_tycho) (meta.id;meta.dataset)
IDTyc1T  Tycho-1 star (tyc) (meta.code)
RAT171.95994417000 deg (i) Observed Tycho-2 Right Ascension (ICRS) at epoch 1990+EpRA1990 (ra) (pos.eq.ra;meta.main)
e_RAT 5.0 mas Uncertainty RA*cos(dec), of observed Tycho-2 RA (eradeg) (stat.error)
DET+45.18525056000 deg (i) Observed Tycho-2 Declination (ICRS) at epoch 1990+EpDE1990 (dec) (pos.eq.dec;meta.main)
e_DET 5.4 mas Uncertainty of observed Tycho-2 Dec (ededeg) (stat.error)
RAmdeg171.95991140000 deg Mean Right Ascension (ICRS) at Ep=J2000 (ra_mdeg) (pos.eq.ra)
e_RAmdeg 5.0 mas Uncertainty RA*cos(dec),at mean epoch (eramdeg) (stat.error)
DEmdeg+45.18521441000 deg Mean Declination (ICRS) at Ep=J2000 (de_mdeg) (pos.eq.dec)
e_DEmdeg 5.0 mas Uncertainty of Dec at mean epoch (edemdeg) (stat.error)
pmRA -9.8 mas/yr (i) Proper motion in right ascension, pmRA*cos(DE) (pm_ra) (pos.pm;pos.eq.ra)
e_pmRA 1.0 mas/yr Uncertainty proper motion in RA*cos(dec) (epmra) (stat.error;pos.pm;pos.eq.ra)
pmDE -15.4 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 1.57 yr Epoch-1990 of RAdeg (ep_ra1990) (time.epoch)
EpDE1990 1.57 yr Epoch-1990 of DEdeg (ep_de1990) (time.epoch)
EpRAmdeg1991.11 yr Mean epoch of RAmdeg (epram) (time.epoch)
EpDEmdeg1991.14 yr Mean epoch of DEmdeg (epdem) (time.epoch)
Num11   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 0.4   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 0.8   Goodness of fit for pmDe (qpmde) (meta.code.qual)
q_pmRA 0.4   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 8.772 mag Tycho-2 BT magnitude (bt_mag) (phot.mag;em.opt.B)
e_BTmag 0.019 mag Uncertainty of BTmag (ebtmag) (stat.error)
VTmag 6.999 mag Tycho-2 VT magnitude (vt_mag) (phot.mag;em.opt.V)
e_VTmag 0.011 mag Uncertainty of VTmag (evtmag) (stat.error)
TDSC   (i) TDSC identifier for the system (sys_no) (meta.id)
cmp   Component designation (cmp) (meta.id.part)
Nmain    Number of components in TDSC main catalogue (n_main) (meta.number)
Nsup    Number of components in the TDSC supplement (n_sup) (meta.number)
magflg   TDSC photometry flag (magflg) (meta.code)
WDS   (i) WDS identifier for the system (wds) (meta.id.cross)
Note   TDSC notes (note) (meta.note)
HD    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.icrs171.95990554691 deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+45.18520778222 deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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