III/267ivo://CDS.VizieR/III/267CDSSchalen C.2018-01-04T08:21:48Z2013-01-16T14:37:04ZCDS support team

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

cds-question@unistra.frstellar-spectral-typesThe two papers compiled here contain spectral types for about 2600 stars in two regions near +20 deg and +40 deg galactic latitude at far-northern Declination. The +20 deg latitude region extends from about RA 19h30m to 0h00m; the +40 deg latitude region extends from about RA 10h to 15h45m. Each zone is about 5 deg in width and the faintest stars are about V mag 11. This includes nearly all BD stars plus many fainter ones. A statistical study of these stars was presented in a third paper (1954ArA.....1..483S). The source material consists of objective-prism plates taken between 1934 and 1940 with the Zeiss-Heyde astrograph (15cm aperture f/10 triplet) of the Uppsala Observatory. The 9.7-deg prism gave a dispersion of 1.4mm between H-gamma and H-epsilon, roughly 260A/mm. The stars were classified on the basis of microphotometer tracings of the spectra. For the present list only the spectral types have been preserved, and various magnitudes, line-ratios, and color-equivalents omitted. The coordinates are mainly from Tycho-2. The magnitudes close to standard V are from modern sources including Tycho-2 and the TASS MkIV survey. The Uppsala spectral types are expressed in MK notation, specifically relating to dwarf/giant discrimination via the CN bands for G and K stars, and some luminosity classification via Balmer line-widths for stars between late-B and early-A. In principle, the temperature types are matched to the HD scale. A few "new" metallic-line A-type stars are reported here as well. In addition, two mag 10 stars were identified by Schalen as type 'B'. Examination of Burrell Schmidt objective-prism plates (uv-transparent 10-degree prism, 110A/mm) shows that both are previously unrecognized B subdwarfs (BD+74 435 and BD+77 564 in the latitude +40 zone). The catalogue contains many stars not classified, for instance, in the HD or for the Yale and AGK astrometric catalogues. Similarly, large numbers of BD stars without accurate coordinates are identified here for the first time. Non-BD stars are assigned the acronyms [S48] and [S49]. There are several clerical errors in the published tables such that stars are either not the named BD star or are not recovered near the nominal coordinates. A combination of the spectral types and more recent photometric colors was used to identify candidates within about 10' radius, but a few stars remain lost.1948UppAn...2d....Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/III/267CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=III/267https://vizier.iucaa.in/viz-bin/VizieR-2?-source=III/267http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=III/267https://vizier.cds.unistra.fr/viz-bin/votable?-source=III/267https://vizier.iucaa.in/viz-bin/votable?-source=III/267http://vizieridia.saao.ac.za/viz-bin/votable?-source=III/267GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table III/267/stars (Spectral classifications of the stars studied.)https://vizier.cds.unistra.fr/viz-bin/conesearch/III/267/stars?https://vizier.iucaa.in/viz-bin/conesearch/III/267/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/III/267/stars?GETtext/xml+votable180.050000true291.422916767.01838890.0055555555555555564/479 755 762 999 1010 1011 1014 1015 5/1915 2000 2001 2003 2004 2005 3005 3006 3007 3012 3014 3015 3019 3041 3042 3043 3044 3045 3046 3052 3995 4017 4020 4021 4064 4068 4069 4080 4081 4084 6/7643 7645 7646 7647 7651 7653 7654 7655 7657 7658 7659 8008 8009 8011 8024 8025 8027 8028 11707 11710 11997 11999 12014 12015 12019 12039 12045 12047 12052 12054 12055 12068 12069 12071 12104 12106 12128 12130 12136 12161 12162 12163 12188 12189 12190 12212 15967 15973 15974 15975 15977 15978 15979 16021 16064 16065 16067 16138 16143 16206 16207 16218 16219 16220 16222 16223 16260 16261 16262 16333 16340https://cdsarc.cds.unistra.fr/viz-bin/moc/III/267?format=asciiOpticaldefaultIII/267/starsSpectral classifications of the stars studied.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCatDesgination of Catalog (BD, [S48] or [s49]) (1)meta.notecharSeqSequentiel number in zone or part (1)meta.id;obs.fieldintRAJ2000Right Ascension J2000 (2)pos.eq.ra;meta.mainDEJ2000Declination J2000 (2)pos.eq.dec;meta.mains[TUM*] Source of position (2)meta.ref;pos.framecharmag? Apparent magnitude (from B. Skiff)magphot.magfloatnullablen_mag[V*] Magnitude band (* for stars not found)meta.notecharSpTypeMK spectral typesrc.spTypecharCommentsNotes and comments (from B. Skiff)meta.notecharSimbadSimbad column added by the CDSmeta.refchar