J/PAZh/34/21ivo://CDS.VizieR/J/PAZh/34/21CDSTsvetkov A.S.Popov A.V.Smirnov A.A.2017-10-16T14:57:45Z2008-11-30T08:12:01ZCDS support team

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

cds-question@unistra.frstellar-spectral-typesmorgan-keenan-classificationparallaxspectroscopyvisible-astronomytrigonometric-parallaxabsolute-magnitudeWe compare the spectroscopic and trigonometric parallaxes of common stars from the Tycho-2 Spectral Type and Hipparcos Catalogues. This comparison has revealed that the distance estimations for the overwhelming majority of stars by both methods yield very similar results. However, there is a small fraction of stars for which the distance estimates differences.2008PAZh...34...21Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/34/21CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)III/231 : The Tycho-2 Spectral Type Catalog (Wright+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PAZh/34/21https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PAZh/34/21http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PAZh/34/21https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PAZh/34/21https://vizier.iucaa.in/viz-bin/votable?-source=J/PAZh/34/21http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PAZh/34/21GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/PAZh/34/21/table2 (Stars with |{delta}logr|>1, their corrected spectral types, and the logarithms of their distances obtained by the spectroscopic parallax method)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PAZh/34/21/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/PAZh/34/21/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PAZh/34/21/table2?GETtext/xml+votable180.050000true3.255020662.72807970.0055555555555555566/944 1096 1098 1804 2466 2473 2492 2495 2742 3064 3153 3158 3286 3301 3303 3596 3611 3614 3637 3641 3651 3653 3654 3658 5581 5593 5791 7324 7347 8408 9083 10431 10455 10464 10488 10491 10520 10522 10548 10758 10766 10825 10839 10956 10992 11010 11274 12310 12996 13079 13399 14246 14317 14413 14422 14425 14429 14434 14448 14449 14604 14687 17011 17234 17377 18023 19206 19213 19433 19436 19490 19781 19953 20022 20498 20588 22225 22537 22775 22976 23545 23564 23950 24013 24251 24426 24581 25080 26022 26251 26795 27021 28444 28890 29107 29202 29252 29585 29642 29744 29961 30264 30331 30376 30491 30896 30973 31187 31317 31488 31759 31769 31774 32301 32934 33980 34508 35019 35745 35907 37501 37947 38065 38562 39009 39201 39318 39403 39796 39864 39873 40167 40375 40576 40845 41442 41530 41586 42066 42233 42259 42869 43269 43724 43783 44032 44636 44815 45078 45295 45889 46687 46709 46897 47402 47432 47502 47985 48429 48563 48797 49016https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PAZh/34/21?format=asciiOpticaldefaultJ/PAZh/34/21/table1Tabulated B-V color indices and absolute magnitudes M for stars of various spectra and of luminosity classes I, III and VrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpClassSpectral classsrc.spTypecharMAG-1Absolute magnitude for Luminosity class Imagphys.magAbs;em.opt.Ifloat(B-V)1B-V index for Luminosity class Imagphot.color;em.opt.B;em.opt.VfloatMAG-3Absolute magnitude for Luminosity class IIImagphys.magAbsfloat(B-V)3B-V index for Luminosity class IIImagphot.color;em.opt.B;em.opt.VfloatMAG-5Absolute magnitude for Luminosity class Vmagphys.magAbs;em.opt.Vfloat(B-V)5B-V index for Luminosity class Vmagphot.color;em.opt.B;em.opt.VfloatJ/PAZh/34/21/table2Stars with |{delta}logr|>1, their corrected spectral types, and the logarithms of their distances obtained by the spectroscopic parallax methodrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHIP (Cat. I/239) numbermeta.idintlogRtLogarithm of the distance derived from the trigonometric parallaxlog(pc)pos.distancefloatlogRsLogarithm of the distance derived from the spectroscopic parallaxlog(pc)pos.distancefloatBT-VTB-V colour index from the Tycho-2 Spectral Types Catalogue (Cat. III/231)magphot.color;em.opt.B;em.opt.VfloatVTmagApparent magnitude from the Tycho-2 Spectral Type Catalogue (Cat. III/231)magphot.mag;em.opt.VfloatSpTypeSpectral type from the Tycho-2 Spectral Type Catalogue (Cat. III/231)src.spTypecharType[VHDMCNB] Star type (1)src.classcharSpType1New (presumed) spectral typesrc.spTypecharn_SpType1[sSlL ] Note on SpType1 (2)meta.notecharlogR1? Logarithm of the distance calculated from SpType1log(pc)pos.distance;meta.modelledfloatnullableSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main