Abstract
THE BINARY STAR μ2 BOOTIS.—Dr. W. Doberck, of Col. Cooper's Observatory, Markree Castle, Sligo, has communicated to the Royal Irish Academy, and also published in Ast. Nach. No. 2026, an orbit of this binary founded upon a very complete discussion of the measures from 1782 when the duplicity was detected by Sir W. Herschel, to 1873. The resulting period of revolution is 290 years, and the true peri-astron passage is found to have occurred about 1863.5. Dr. Doberck does not append an ephemeris of angles and distances according to his orbit, but we supply them for the next eighteen months for comparison with any measures that may be made in the interval:—
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Our Astronomical Column . Nature 11, 348–349 (1875). https://doi.org/10.1038/011348d0
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DOI: https://doi.org/10.1038/011348d0