One-thousand one-hundred ninety-seven observations of 730 binary star systems, observed by means of speckle interferometry with the 4 m telescope on Kitt Peak, are presented. Included in these binary stars are new interferometric companions to five visual binaries. These measurements, made mostly during the period 1991 to 1993, comprise the 11th installment of results stemming from our speckle program at the 4 m class telescopes on Kitt Peak, Cerro Tololo, and Mauna Kea.
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Hartkopf et al. (1994) studied this question.
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