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" The total range of speed is but three one hundredths of a kilometer per second. An observer favorably situated in another system, provided with instruments enabling him to measure speeds with absolute accuracy, could detect this variation, and in time... "
Publications of the Astronomical Society of the Pacific - Page 64
by Astronomical Society of the Pacific - 1906
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Popular Science Monthly, Volume 66

1904 - 596 pages
...center is small, and the orbital speed very slight. The total range of speed is but three one hundredths of a kilometer per second. An observer favorably situated...variations. As the accuracy attainable improves with experience, the proportional number of spectroscopic binaries discovered will undoubtedly be enormously...
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Popular Science Monthly, Volume 66

1904 - 622 pages
...center is small, and the orbital speed very slight. The total range of speed is but three one hundredths of a kilometer per second. An observer favorably situated...variations. As the accuracy attainable improves with experience, the proportional number of spectroscopic binaries discovered will undoubtedly be enormously...
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Publications of the Astronomical Society of the Pacific, Volumes 17-18

Astronomical Society of the Pacific - 1905 - 606 pages
...slightly, because it is attended by companions, — very minute ones compared with the invisible bodies discovered in spectroscopic binary systems. It is...variations. As the accuracy attainable improves with experience, the proportional number of spectroscopic binaries discovered will undoubtedly be enormously...
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Stellar Motions: With Special Reference to Motions Determined by Means of ...

William Wallace Campbell - 1913 - 390 pages
...small, and variable, and the orbital speed very slight. The total possible range of speed is but .03 km. per second. An observer, favorably situated in another...could detect this variation, and in time say that our star is attended by planets. Terrestrial observers have not the present power to measure such minute...
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Popular Science Monthly, Volume 66

1904 - 604 pages
...center is small, and the orbital speed very slight. The total range of speed is but three one hundredths of a kilometer per second. An observer favorably situated...variations. As the accuracy attainable improves with experience, the proportional number of spectroscopic binaries discovered will undoubtedly be enormously...
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