Figueras Siñol, FrancescaTorra Roca, JorgeJordi i Nebot, Carme2009-08-252009-08-2519910365-0138https://hdl.handle.net/2445/9188uvby H-beta photometry has been obtained for a sample of 93 selected main sequence A stars. The purpose was to determine accurate effective temperatures, surface gravities, and absolute magnitudes for an individual determination of ages and parallaxes, which have to be included in a more extensive work analyzing the kinematic properties of A V stars. Several calibrations and methods to determine the above mentioned parameters have been reviewed, allowing the design of a new algorithm for their determination. The results obtained using this procedure were tested in a previous paper using uvby H-beta data from the Hauck and Mermilliod catalogue, and comparing the rusulting temperatures, surface gravities and absolute magnitudes with empirical determinations of these parameters.16 p.application/pdfeng(c) The European Southern Observatory, 1991EstelsFotometria astronòmicaPhotometryLuminosities of starsTemperature of starsinfo:eu-repo/semantics/article60790info:eu-repo/semantics/openAccess