Techniques of Collection, Reduction and Analysis of Data of Pulsating Stars II

Abstract

In this contribution some specific problems inherent to pulsating stars observations are reviewed. we describe how to estimate fundamental stellar parameters through empirical and semi-empirical calibrations as well as how to obtain additional information from the observation in other bands of chromospheres and coronas. A detailed description is then given on how to correct photometric data for atmospheric extinction. Through a description of a “blind” statistical approach to cluster surveys we will then underline how important information about pulsating variables resides in the class more than in the individual.