Posições de Asteróides do Programa Internacional do Instituto de Astronomia Teórica de Leningrado obtidas no Rio de Janeiro
AbstractIn September 1977, we have observed Minor Planets at Rio de Janeiro, most of them indicated as to be observed (signed X, XX or + in Ephemerides Minor Planets from ITA or required by Program of Leningrad) . The instrument Astrographic Camera (f = 170cm, Î¦ 25cm) was used. By clear sky, magnitude 13.5 to 14 could be attained. Measures and reductions were performed at the Observatório do Valongo with the Ascorecord measuring machine (0,1 Âµ ) and by means of five reference stars (SAO catalogue) on the Burroughs B6700 NCE-UFRJ computer.
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