How To Use Heliometer In A Sentence
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After the expedition the heliometer was donated to the Observatory who built a tower for it.
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And so, the phenomenon in 1882 was observed by cameras held by the French and the Americans, and timings were measured with the help of heliometers in most European organizations.
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The heliometer is shown on display at the Science Museum in London.
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He also determined the distances, using the heliometer, of twenty of the brighter and nearer Southern stars.
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A heliometer is a refractor, with the objective cut in two, which was used to measure small angular distances.
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Here he constructed the famous "Dorpat refractor" for Struve, which is still at work; and designed the "Königsberg heliometer" for Bessel.
Pioneers of Science