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Times of Maxima for Selected Delta Scuti Stars
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| A revised catalogue of delta Sct stars
An extensive and up-dated list of delta Sct stars is presented here.More than 500 papers, published during the last few years, have beenrevised and 341 new variables have been added to our last list, sixyears ago. This catalogue is intended to be a comprehensive review onthe observational characteristics of all the delta Sct stars known untilnow, including stars contained in earlier catalogues together with othernew discovered variables, covering information published until January2000. In summary, 636 variables, 1149 references and 182 individualnotes are presented in this new list. Tables 1 and 2 will be accessibleonly in electronic form at the CDS via anonymous ftp tocdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
| A catalogue of variable stars in the lower instability strip.
Identifications, positions, photometry, spectra, some pulsationalfeatures, other astrophysical parameters and literature for 302pulsating variable stars in the lower instability strip, near the ZAMS,are given. About 185 stars have near homogeneous photometric informationin the Stroemgren's uvby-β photometric system. Thiscatalogue/database covers information published until November 1993.
| δ Scuti stars: a new revised list
An extensive and up to date list of δ Sct stars is presented. Thiscatalogue is intended to be a comprehensive review of observationalcharacteristics of all the δ Sct stars known until now, includingstars contained in earlier catalogues together with other new discoveredvariables, covering information published until November 1993. Globalinformation in the form of histograms and diagrams are also shown.
| The Baade-Wesselink method and the distances to RR Lyrae stars. VII - The field stars SW Andromedae and DX Delphini and a comparison of recent Baade-Wesselink analyses
New BVK photometry and radial velocities from high-resolutionspectroscopy are presented for the metal-rich ab-type RR Lyrae star SWAndromedae. These data, along with previously published optical data,are used to derive the distance and absolute magnitudes of this star,employing the IR surface brightness version of the Baade-Wesselinkmethod. These results are compared with other recent applications of theBaade-Wesselink method, and they are found to agree to within 0.10 magwhen the appropriate phase intervals are considered.
| The 70th Name-List of Variable Stars
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Herkul |
| Sað Açýklýk: | 17h52m39.68s |
| Yükselim: | +29°43'16.3" |
| Görünürdeki Parlaklýk: | 9.287 |
| özdevim Sað Açýklýk: | -17.1 |
| özdevim Yükselim: | -5.8 |
| B-T magnitude: | 9.813 |
| V-T magnitude: | 9.331 |
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