Abstract
WE welcome another addition to our knowledge of the positions and distances of double stars. Prof. Asaph Hall has published a volume containing 1614 observations of such stars made by him chiefly with the 26-inch refractor at the Naval Observatory at Washington. The objects of the observations are two. Firstly, the detection of constant errors of observations by the measurements of double-stars from a selected list, and comparing such measures with those of other observers made as nearly as possible simultaneously; and, secondly, the measurements of double-stars generally.
Observations of Double-Stars made at the United States Naval Observatory.
By Asaph Hall, Professor of Mathematics, United States Navy, and Rear-Admiral Rodgers, U.S.N., Superintendent. (Washington: Government Printing Office, 1881.)
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Observations of Double-Stars made at the United States Naval Observatory . Nature 25, 122 (1881). https://doi.org/10.1038/025122a0
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DOI: https://doi.org/10.1038/025122a0