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We present speckle interferometric measurements of binary stars performed during September and October of 2009 with the 2.1 m telescope of the Observatorio Astronómico Nacional at SPM (Mexico). We report here the results of 200 measurements of 196 pairs with a primary limiting magnitude of V = 12.3. The measured angular separations range from 000.115 to 500.26. Ninety seven pairs have separations less than 100. The mean error in separation is 000.03 and 1º.5 in position angle. The usual 180º ambiguity was corrected for a majority of position angles by comparison with observations performed by other observers.

Palabras clave: Binaries: visual, stars: fundamental parameters, techniques: high angular resolution, techniques: interferometric.
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Universidad Autónoma del Estado de México
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Versión 3.0 | 2017
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