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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=173685
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ColumnValue  Explain   (UCD)
_RAJ200009 27 55.6508000 "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+17 39 12.059000 "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)
_RAB195009 25 08.6194116 "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+17 52 17.618821 "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)
_Glon213.2630051488 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+42.3299884852 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)
173685recno 173685  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)

NameBD+18 2200  Normalised star name (preferably HD) (meta.id;meta.main)
SpTypeG0  Spectral Type from Simbad (src.spType)
Bmag 10.020 mag B magnitude (Cat. I/259) (phot.mag;em.opt.B)
e_Bmag 0.037000 mag Error on Bmag (Cat. I/259) (stat.error;phot.mag;em.opt.B)
Vmag 9.397 mag V magnitude (Cat. I/259) (phot.mag;em.opt.V)
e_Vmag 0.029 mag Error on Vmag (Cat. I/259) (stat.error;phot.mag;em.opt.V)
Rmag 8.670821 mag R magnitude (estimated) (phot.mag;em.opt.R)
Imag 8.552625 mag I magnitude (estimated) (phot.mag;em.opt.I)
Jmag 8.109 mag J magnitude (Cat. II/246) (phot.mag;em.IR.J)
e_Jmag 0.024 mag Error on Jmag (Cat. II/246) (stat.error;phot.mag;em.IR.J)
Hmag 7.758 mag H magnitude (Cat. II/246) (phot.mag;em.IR.H)
e_Hmag 0.023 mag Error on Hmag (Cat. II/246) (stat.error;phot.mag;em.IR.H)
Kmag 7.681 mag K magnitude (Cat. II/246) (phot.mag;em.IR.K)
e_Kmag 0.024 mag Error on Kmag (Cat. II/246) (stat.error;phot.mag;em.IR.K)
Lmag 7.583 mag L magnitude (Cat. II/311/wise W1mag) (phot.mag;em.IR.3-4um)
e_Lmag 0.032 mag Error on Lmag (Cat. II/311/wise e_W1mag) (stat.error;phot.mag;em.IR.3-4um)
Mmag 7.654 mag M magnitude (Cat. II/311/wise W2mag) (phot.mag;em.IR.4-8um)
e_Mmag 0.020 mag Error on Mmag (Cat. II/311/wise e_W2mag) (stat.error;phot.mag;em.IR.4-8um)
Nmag 7.634000 mag N magnitude (Cat. II/311/wise W3mag) (phot.mag;em.IR.8-15um)
e_Nmag 0.019 mag Error on Nmag (Cat. II/311/wise e_W3mag) (stat.error;phot.mag;em.IR.8-15um)
LDD 0.126477 mas Limb-Darkened Disk diameter (phys.angSize)
e_LDD 0.002933 mas Error on LDD (and all UDDs) (Note 1)   (stat.error)
LDDCHI 2.59697e-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 0.116859 mas Uniform Disk Diameter in band B (Note 4)   (phys.angSize;em.opt.B)
UDDV 0.118996 mas Uniform Disk Diameter in band V (Note 4)   (phys.angSize;em.opt.V)
UDDR 0.120284 mas Uniform Disk Diameter in band R (Note 4)   (phys.angSize;em.opt.R)
UDDI 0.121556 mas Uniform Disk Diameter in band I (Note 4)   (phys.angSize;em.opt.I)
UDDJ 0.123551 mas Uniform Disk Diameter in band J (Note 4)   (phys.angSize;em.IR.J)
UDDH 0.123551 mas Uniform Disk Diameter in band H (Note 4)   (phys.angSize;em.IR.H)
UDDK 0.124023 mas Uniform Disk Diameter in band K (Note 4)   (phys.angSize;em.IR.K)
UDDL 0.125050 mas Uniform Disk Diameter in band L (Note 4)   (phys.angSize;em.IR.3-4um)
UDDM 0.125326 mas Uniform Disk Diameter in band M (Note 4)   (phys.angSize;em.IR.4-8um)
UDDN 0.125822 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)

RAJ200009 27 55.65080 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+17 39 12.0590 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  
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