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VizieR

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II/346/jsdc_v2 JMMC Stellar Diameters Catalogue - JSDC. Version 2 (Bourges+, 2017)
Stellar diameters catalogue, version 2 (465877 rows)
  recno=39838
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ColumnValue  Explain   (UCD)
_RAJ200002 58 45.6698500 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+39 39 45.814100 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195002 55 33.3792762 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+39 27 48.695522 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon148.0435112488 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-16.9208274687 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
39838recno 39838  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
Dis 0  indicates differences between JSDC V1 and V2 (meta.note)

Name* pi. Per  Normalised star name (preferably HD) (meta.id;meta.main)
SpTypeA2Vn  Spectral Type from Simbad (src.spType)
Bmag 4.745 mag B magnitude (Cat. I/259) (phot.mag;em.opt.B)
e_Bmag 0.011402 mag Error on Bmag (Cat. I/259) (stat.error;phot.mag;em.opt.B)
Vmag 4.680 mag V magnitude (Cat. I/259) (phot.mag;em.opt.V)
e_Vmag 0.003 mag Error on Vmag (Cat. I/259) (stat.error;phot.mag;em.opt.V)
Rmag 3.749907 mag R magnitude (estimated) (phot.mag;em.opt.R)
Imag 4.711587 mag I magnitude (estimated) (phot.mag;em.opt.I)
Jmag 4.770 mag J magnitude (Cat. II/246) (phot.mag;em.IR.J)
e_Jmag 0.298 mag Error on Jmag (Cat. II/246) (stat.error;phot.mag;em.IR.J)
Hmag 4.692 mag H magnitude (Cat. II/246) (phot.mag;em.IR.H)
e_Hmag 0.206 mag Error on Hmag (Cat. II/246) (stat.error;phot.mag;em.IR.H)
Kmag 4.418 mag K magnitude (Cat. II/246) (phot.mag;em.IR.K)
e_Kmag 0.021 mag Error on Kmag (Cat. II/246) (stat.error;phot.mag;em.IR.K)
Lmag 4.406 mag L magnitude (Cat. II/311/wise W1mag) (phot.mag;em.IR.3-4um)
e_Lmag 0.200 mag Error on Lmag (Cat. II/311/wise e_W1mag) (stat.error;phot.mag;em.IR.3-4um)
Mmag 4.219 mag M magnitude (Cat. II/311/wise W2mag) (phot.mag;em.IR.4-8um)
e_Mmag 0.137 mag Error on Mmag (Cat. II/311/wise e_W2mag) (stat.error;phot.mag;em.IR.4-8um)
Nmag 4.450000 mag N magnitude (Cat. II/311/wise W3mag) (phot.mag;em.IR.8-15um)
e_Nmag 0.014 mag Error on Nmag (Cat. II/311/wise e_W3mag) (stat.error;phot.mag;em.IR.8-15um)
LDD 0.402471 mas Limb-Darkened Disk diameter (phys.angSize)
e_LDD 0.040612 mas Error on LDD (and all UDDs) (Note 1)   (stat.error)
LDDCHI 1.43041e-01  Chi2 of LDD fitting (Note 2)   (stat.fit.chi2)
CalFlag0   [0/7] Confidence flags for using this star as a calibrator in Optical Interferometry experiments (Note 3)   (meta.code)
UDDB 0.381274 mas Uniform Disk Diameter in band B (Note 4)   (phys.angSize;em.opt.B)
UDDV 0.384253 mas Uniform Disk Diameter in band V (Note 4)   (phys.angSize;em.opt.V)
UDDR 0.388732 mas Uniform Disk Diameter in band R (Note 4)   (phys.angSize;em.opt.R)
UDDI 0.392018 mas Uniform Disk Diameter in band I (Note 4)   (phys.angSize;em.opt.I)
UDDJ 0.395183 mas Uniform Disk Diameter in band J (Note 4)   (phys.angSize;em.IR.J)
UDDH 0.396973 mas Uniform Disk Diameter in band H (Note 4)   (phys.angSize;em.IR.H)
UDDK 0.397728 mas Uniform Disk Diameter in band K (Note 4)   (phys.angSize;em.IR.K)
UDDL 0.399888 mas Uniform Disk Diameter in band L (Note 4)   (phys.angSize;em.IR.3-4um)
UDDM 0.400515 mas Uniform Disk Diameter in band M (Note 4)   (phys.angSize;em.IR.4-8um)
UDDN 0.401149 mas Uniform Disk Diameter in band N (4 (phys.angSize;em.IR.8-15um)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)

RAJ200002 58 45.66985 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+39 39 45.8141 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  
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