Abstract
THE SPECTROSCOPIC BINARY CAPELLA.—The Lick Observatory Bulletin No. 6 contains the final values adopted for the orbit of the spectroscopic binary system of Capella. The reductions are from thirty-one observations of the radial velocity of the solar-type component, made with the Mills spectrograph between 1896 September 1 and 1900 September 27. On most of the plates the spectra of the two components are distinguish able, that of the principal star being of the solar type, whereas that of the secondary component is intermediate between the solar and Sirian types. The ranges in velocity are as follow:—
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Our Astronomical Column . Nature 64, 639 (1901). https://doi.org/10.1038/064639a0
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DOI: https://doi.org/10.1038/064639a0