Abstract
THE DOUBLE STAR Σ 2120.—As mentioned last week, M. Flammarion advocates the binary character of this star, identifying it, as Sir John Herschel had already done, with H. III. 89. Sir W. Herschel's observation runs thus:—
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Our Astronomical Column . Nature 12, 496–497 (1875). https://doi.org/10.1038/012496d0
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DOI: https://doi.org/10.1038/012496d0