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Published online by Cambridge University Press: 12 April 2016
During June 17-27, 1987 observers in Mexico, Chile, Italy, South Africa, Australia and the United States monitored the light output of the prototype variable star, δ Scuti. The goal of the network was to obtain this star’s frequency spectrum. During the campaign, over 17,000 observations were obtained in the Stromgren b and y filters. A preliminary analysis has been performed and the frequencies listed in Table 1 have been tentatively identified.