期刊
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
卷 45, 期 1, 页码 30-38出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S106377371901002X
关键词
double and multiple stars; orbits
Based on positional observations, we have determined the orbits of 130 visual double stars for the first time and improved the orbits of 321 stars. The histogram of eccentricities for all of the derived orbits corresponds to the relation f = 2e. The period distribution has two pronounced maxima at P approximate to 200 and approximate to 550 yr. The ephemeris relative positions and their errors have been calculated for the next three years.
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