J/A+AS/130/477ivo://CDS.VizieR/J/A+AS/130/477CDSKnude J.1998-10-28T14:50:39Z1998-10-28T15:50:11ZCDS support team

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

cds-question@unistra.frvisible-astronomymedium-band-photometrystellar-distanceWe present the uvby{beta} data used to locate the dust and derive distances for nearby diffuse interstellar clouds in the EUV shadows lb27-31, lb165-32 and lb329+46 discovered by the Extreme Ultraviolet Explorer. The photometrically derived parallaxes of our program stars are compared to the parallaxes listed in the Hipparcos Catalog. Within the photometric distance limit of 150pc, the photometric parallaxes of 21 ``normal" stars are consistent with the Hipparcos measurements within an uncertainty of 15%. Much as expected for the Stroemgren system. Since all program stars are brighter than V=~11.5 most of them are included in the Tycho photometry. For our sample of ~200 stars we find V_by_ and V_T_ to be consistent. Few stars are common to published uvby{beta} catalogs, ~10, V and the indices compare well apart from {beta} where a zero point difference of 11mmag is noticed.1998A&AS..130..477Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/130/477CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/146 : Positions and Proper Motions - North (Roeser+, 1988)I/193 : Positions and Proper Motions - South (Bastian+ 1993)I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/130/477https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/130/477http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/130/477https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/130/477https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/130/477http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/130/477GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/130/477/table1 (lb165-32 shadow direction)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/130/477/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/130/477/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/130/477/table1?GETtext/xml+votable180.050000true49.692458319.01694440.005555555555555556Cone search capability for table J/A+AS/130/477/table2 (lb27-31 shadow direction)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/130/477/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/130/477/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/130/477/table2?GETtext/xml+votable180.050000true310.93125-18.48469440.005555555555555556Cone search capability for table J/A+AS/130/477/table3 (lb329+46 shadow direction)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/130/477/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/130/477/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/130/477/table3?GETtext/xml+votable180.050000true211.4895833-13.070.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/130/477?format=asciiOpticaldefaultJ/A+AS/130/477/table1lb165-32 shadow directionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPPM? PPM (Cat. <I/146> & <I/193>) numbermeta.idintnullableHD/BDHD (Cat. <III/135>) or BD (Cat. <I/122>) numbermeta.idcharTYCTycho (Cat. <I/239>) numbermeta.idcharRA2000Right ascension (2000.0)pos.eq.ra;meta.mainDE2000Declination (2000.0)pos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.Bfloatb-yb-y colour indexmagphot.color;em.opt.B;em.opt.Vfloatm1m_1_ colour indexmagphot.colorfloatc1c_1_ colour indexmagphot.colorfloato_b-yNumber of observations in ubvymeta.numberintbeta{beta} colour indexmagspect.indexfloato_betaNumber of observations in {beta}meta.numberintComComments (1)meta.notecharJ/A+AS/130/477/table2lb27-31 shadow directionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPPM? PPM (Cat. <I/146> & <I/193>) numbermeta.idintnullableHD/BDHD (Cat. <III/135>) or BD (Cat. <I/122>) numbermeta.idcharTYCTycho (Cat. <I/239>) numbermeta.idcharRA2000Right ascension (2000.0)pos.eq.ra;meta.mainDE2000Declination (2000.0)pos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.Bfloatb-yb-y colour indexmagphot.color;em.opt.B;em.opt.Vfloatm1m_1_ colour indexmagphot.colorfloatc1c_1_ colour indexmagphot.colorfloato_b-yNumber of observations in ubvymeta.numberintbeta{beta} colour indexmagspect.indexfloato_betaNumber of observations in {beta}meta.numberintComComments (1)meta.notecharJ/A+AS/130/477/table3lb329+46 shadow directionVmagV magnitudemagphot.mag;em.opt.Bfloatb-yb-y colour indexmagphot.color;em.opt.B;em.opt.Vfloatm1m_1_ colour indexmagphot.colorfloatc1c_1_ colour indexmagphot.colorfloato_b-yNumber of observations in ubvymeta.numberintbeta{beta} colour indexmagspect.indexfloato_betaNumber of observations in {beta}meta.numberintComComments (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPPM? PPM (Cat. <I/146> & <I/193>) numbermeta.idintnullableHD/BDHD (Cat. <III/135>) or BD (Cat. <I/122>) numbermeta.idcharTYCTycho (Cat. <I/239>) numbermeta.idcharRA2000Right ascension (2000.0)pos.eq.ra;meta.mainDE2000Declination (2000.0)pos.eq.dec;meta.main