Abstract
THE SPECTROSCOPIC BINARY η PEGASI.—Observations of this interesting spectroscopic binary, discovered by means of the Mills spectrograph in August, 1898, have now extended over more than two complete periods, and Prof. Campbell has recently issued the data obtained from the reduction of the measures. Twenty-nine photographs, extending from 1896 August 27 to 1901 May 9, have been utilised in the determination of the orbit.
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Our Astronomical Column . Nature 64, 609 (1901). https://doi.org/10.1038/064609a0
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DOI: https://doi.org/10.1038/064609a0