With the object of testing the capabilities of the method, he took for his first essay the well-known star 61 Cygni, and his results agreed so well with those previously attained that he undertook the systematic measurement of the parallaxes of second-magnitude stars, and published the outcome in the third and fourth volumes of the Publications of the Oxford University Observatory. [Please select]
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If the two telescopes are widely spaced, few birds are seen by both observers, and hence few parallaxes are obtained. [Please select]
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Latin-1 file: Under General Notices, "The Parallaxes of 61^1 and 61^2 Cygni"; "^" indicates a superscript of the number following. [Please select]
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