Definition of heliometer in English:

heliometer

noun ˌhiːlɪˈɒmɪtəˌhiliˈɑmədər

Astronomy

A refracting telescope with a split objective lens, used for finding the angular distance between two stars.
〔天文〕量日仪
Example sentencesExamples
- A heliometer is a refractor, with the objective cut in two, which was used to measure small angular distances.
- 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.
- The heliometer is shown on display at the Science Museum in London.
- He also determined the distances, using the heliometer, of twenty of the brighter and nearer Southern stars.
- After the expedition the heliometer was donated to the Observatory who built a tower for it.

Origin

Mid 18th century: from helio- 'of the sun' + -meter (because it was originally used for measuring the diameter of the sun).

Definition of heliometer in US English:

heliometer

nounˌhēlēˈämədərˌhiliˈɑmədər

Astronomy

A refracting telescope with a split objective lens, used for finding the angular distance between two stars.
〔天文〕量日仪
Example sentencesExamples
- 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.
- After the expedition the heliometer was donated to the Observatory who built a tower for it.
- The heliometer is shown on display at the Science Museum in London.
- He also determined the distances, using the heliometer, of twenty of the brighter and nearer Southern stars.
- A heliometer is a refractor, with the objective cut in two, which was used to measure small angular distances.

Origin

Mid 18th century: from helio- ‘of the sun’ + -meter (because it was originally used for measuring the diameter of the sun).

词汇	heliometer
释义	Definition of heliometer in English: heliometer noun ˌhiːlɪˈɒmɪtəˌhiliˈɑmədər Astronomy A refracting telescope with a split objective lens, used for finding the angular distance between two stars. 〔天文〕量日仪 Example sentencesExamples A heliometer is a refractor, with the objective cut in two, which was used to measure small angular distances. 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. The heliometer is shown on display at the Science Museum in London. He also determined the distances, using the heliometer, of twenty of the brighter and nearer Southern stars. After the expedition the heliometer was donated to the Observatory who built a tower for it. Origin Mid 18th century: from helio- 'of the sun' + -meter (because it was originally used for measuring the diameter of the sun). Definition of heliometer in US English: heliometer nounˌhēlēˈämədərˌhiliˈɑmədər Astronomy A refracting telescope with a split objective lens, used for finding the angular distance between two stars. 〔天文〕量日仪 Example sentencesExamples 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. After the expedition the heliometer was donated to the Observatory who built a tower for it. The heliometer is shown on display at the Science Museum in London. He also determined the distances, using the heliometer, of twenty of the brighter and nearer Southern stars. A heliometer is a refractor, with the objective cut in two, which was used to measure small angular distances. Origin Mid 18th century: from helio- ‘of the sun’ + -meter (because it was originally used for measuring the diameter of the sun).
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