Abstract
I AM going to undertake the calculation of elements of λ Ophiuchi, which you proposed to calculators in NATURE, vol. xiv. p. 29. I shall also within a short time give orbits of γ Coronæ, which has not been separated as far as I know since spring, 1867, when it was observed in Harvard College, and of ξ Libræ (Scorpii). About the latter binary star we know but very little. Mädler has given a circular orbit with a period of over 100 years, while Thiele gives a highly eccentric orbit with a period of about fifty years. It may very likely be found that the older determination is the most trustworthy, but the case deserves a thorough examination, which I am going to make. I have been engaged in a re-determination of elements of 6 Coronæ, by which the long period has been re-ascertained.
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DOBERCK, W. λ Ophiuchi. Nature 14, 309 (1876). https://doi.org/10.1038/014309d0
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DOI: https://doi.org/10.1038/014309d0
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