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R.J. Muller (The U.P.R. at Humacao), J.C. Cersosimo (The Univ of PR at Humacao), D. Cotto, I. Rosado de Jesus, D. Centeno, V. Miranda-SanFeliz, C. Martinez (The U.P.R. at Humacao)
We have measured separation / position angle of selected binaries chosen from the list of binaries with ephemeredes of the Sixth Catalog of Orbits of Visual Binary Stars of the USNO. We also analyzed selected binaries from the Washington Double Star Catalog, also of the USNO. The data reported here was acquired at the 31 inch NURO telescope near Flagstaff, Arizona. The results of these measurements complement results from previously acquired data. Our results point to the fact that some neglected binaries seem to show no change in separation/ position angle for more than 100 years. We thank the Puerto Rico Space Grant Consortium and the LSAMP of Puerto Rico for their support of this project
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.