J/AJ/159/95ivo://CDS.VizieR/J/AJ/159/95doi:10.26093/cds/vizier.51590095CDSStraizys V.Boyle R.P.Raudeliunas S.Zdanavicius J.Janusz R.,Macijauskas M.Lazauskaite R.Cernis K.Zdanavicius K.Maskoliunas M.,Cepas V.Kazlauskas A.2022-11-03T08:35:56Z2020-05-14T11:19:01ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fropen-star-clustersvilnius-photometrystellar-spectral-typesThe open cluster IC1369, located in Cygnus close to the galactic equator at the 89.6{deg} longitude, and its vicinity are investigated by applying two-dimensional photometric classification of stars down to V=19mag measured in the Vilnius seven-color photometric system. Employing the Gaia DR2 coordinates, parallaxes, and proper motions, 143 cluster members are found having cluster membership probabilities >=0.75. The hottest stars of the evolved main sequence are of spectral class B9. Distances to the cluster, determined by two methods based on the Gaia parallaxes, are 3280 and 3370pc with an uncertainty of 400-500pc. Employing the physical HR diagram with the coordinates logL/L_{sun}_ versus logTeff and the Padova isochrones, the cluster age is found to be between 300 and 350Myr. Among the cluster members we identified six red giants of spectral classes G5-G8 and luminosities II-III, 17 Am stars, one Ap star, and one B5 blue straggler. The extinction shows a steep rise up to ~2.0mag at 300-700pc, caused by the extensions of the dust cloud LDN970 and the Great Cygnus Rift, and up to ~2.5mag at the edge of the Perseus arm at 3.0kpc. The extinction is almost constant between 0.9 and 2.5kpc from the Sun. The average extinction of the cluster members is 2.54mag. A systematic error of color excesses found in the Argonaut calculator results is discussed.2020AJ....159...95Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/159/95CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+AS/109/375 : Blue stragglers in open clusters (Ahumada+, 1995)J/A+AS/113/325 : Distance measurements of Lynds Nebulae (Hilton+, 1995)J/ApJ/469/355 : Teff, B-V and BC relation (Flower, 1996)J/BaltA/7/369 : M67 CCD photometry (Boyle+, 1998)J/BaltA/13/1 : M67 CCD Vilnius photometry (Laugalys+, 2004)J/AN/326/3 : BVRI photometry of 4 open clusters (Ahumada+, 2005)J/A+A/463/789 : Blue stragglers in open clusters (Ahumada+, 2007)J/A+A/464/573 : VI photometry of 5 open clusters (Carraro+, 2007)J/BaltA/19/197 : King 7 Vilnius photometry (Zdanavicius+, 2010)J/AJ/141/92 : BVI photometry of 10 distant open clusters (Janes+, 2011)J/A+A/544/A49 : Vilnius photometry in North Ecliptic Pole (Zdanavicius+, 2012)J/A+A/558/A53 : Milky Way survey of star clusters. II. (Kharchenko+, 2013)J/A+A/554/A3 : Vilnius photometry of IC1805 stars (Straizys+, 2013)J/BaltA/22/181 : Vilnius photometry of M29 (NGC6913) (Milasius+, 2013)J/PASP/127/31 : CCD photometry of NGC 2482 (Krisciunas+, 2015)J/ApJ/823/114 : The Cannon: a new approach to determine masses (Ness+, 2016)J/A+A/585/A31 : Vilnius photometry of TGU H994 P1 (Straizys+, 2016)J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)J/A+A/611/A9 : LDN 183 and LDN 169 Vilnius photometry (Straizys+, 2018)J/A+A/623/A108 : Age of 269 GDR2 open clusters (Bossini+, 2019)J/A+A/625/A135 : Galac. interstellar dust Gaia-2MASS 3D maps (Lallement+, 2019)J/A+A/623/A22 : IC 4996 Vilnius phot. and Gaia DR2 astrometry (Straizys+,2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/159/95https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/159/95http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/159/95https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/159/95https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/159/95http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/159/95GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/159/95/table1 (The catalog of 2694 stars in the IC1369 area with the results of CCD photometry and photometric spectral types)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/95/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/95/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/95/table1?GETtext/xml+votable180.050000true317.865541747.85761110.005555555555555556Cone search capability for table J/AJ/159/95/table2 (The list of IC1369 members with their classification and intrinsic parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/95/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/95/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/95/table2?GETtext/xml+votable180.050000true317.945547.7380.0055555555555555566/15379 153853.561607812030676e-19 3.741500294832266e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/159/95?format=asciiOpticaldefaultJ/AJ/159/95/table1The catalog of 2694 stars in the IC1369 area with the results of CCD photometry and photometric spectral typesSeq[1/2694] Sequential numbermeta.recordintprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_SeqIndicates that the star has known intrinsic parameters (link to table2)meta.ref.urlcharRAJ2000[21] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[47] Degree of Declination (J2000)pos.eq.dec;meta.mainVmag[10.2/20.5] V magnitude (Vilnius system)magphot.mag;em.opt.Vfloate_Vmag[0.009/0.15] Error of V magnitude (Vilnius system)magstat.error;phot.magfloatU-V[1.8/6.9]? U-V colour index (Vilnius system)magphot.color;em.opt.U;em.opt.Vfloatnullablee_U-V[0.01/0.26]? Error of U-V colour index (Vilnius system)magstat.error;phot.color;em.opt.UfloatnullableP-V[1.5/6.6]? P-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Ufloatnullablee_P-V[0.01/0.23]? Error of P-V colour index (Vilnius system)magstat.errorfloatnullableX-V[0.8/5.1] X-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Bfloate_X-V[0.01/0.24] Error of X-V colour index (Vilnius system)magstat.errorfloatY-V[0.15/2.5] Y-V colour index (Vilnius system)magphot.color;em.opt.B;em.opt.Vfloate_Y-V[0.01/0.23] Error of Y-V colour index (Vilnius system)magstat.errorfloatZ-V[0.19/0.82] Z-V colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Vfloate_Z-V[0.01/0.22] Error of Z-V colour index (Vilnius system)magstat.errorfloatV-S[0.33/2.5]? V-S colour index (Vilnius system)magphot.color;em.opt.V;em.opt.Rfloatnullablee_V-S[0.02/0.21]? Error of V-S colour index (Vilnius system)magstat.errorfloatnullableSpTypePhotometric MK spectral type (in lower case letters) if anysrc.spTypecharJ/AJ/159/95/table2The list of IC1369 members with their classification and intrinsic parametersSeq[603/2285] Sequential numbermeta.recordintSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[21] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[47] Degree of Declination (J2000)pos.eq.dec;meta.mainVmag[12.7/18.8] V magnitude (Vilnius system)magphot.mag;em.opt.VfloatAv[1.9/3.3]? Interstellar extinction in the V bandmagphys.absorptionfloatnullable(Y-V)0[0.1/0.72]? Intrinsic (Y-V) colour index (Vilnius system)magphot.color;em.opt.B;em.opt.VfloatnullableVmag0[10.1/16.6]? Vmag-Av (Vilnius system)magphot.mag;em.opt.VfloatnullableBC[0.33/3]? Bolometric correctionmagphot.mag.bcfloatnullablelogTeff[3.6/4.2]? Log of effective temperature of the starlog(K)phys.temperature.effectivefloatnullablelogL[-1.3/0.04]? Log of luminosity of the starlog(solLum)phys.luminosity;em.optfloatnullablepmRA[-5.1/-4.2] Gaia DR2 (I/345) proper motion in right ascension (pmRA*cosDE)mas/yrpos.pm;pos.eq.rafloate_pmRA[0.03/0.26] Standard error of proper motion in right ascension directionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-6/-5.2] Gaia DR2 (I/345) proper motion in declination directionmas/yrpos.pm;pos.eq.decfloate_pmDE[0.03/0.26] Standard error of proper motion in declinationmas/yrstat.error;pos.pm;pos.eq.decfloatDist[2258/4748] Distance of the star from Bailer-Jones+, 2018, I/347pcpos.distanceintPMm[0.75/0.99] Probability of membershipstat.probabilityfloatGaiaDisplay data from Gaia DR2 (I/345) and Bailer-Jones+, 2018, I/347, within 0.5"meta.ref.urlcharSpTypePhotometric MK spectral type (in lower case letters) if anysrc.spTypechar