Definición de heliometer en inglés:

heliometer

Saltos de línea: he¦li|om¦eter
Pronunciación: /ˌhiːlɪˈɒmɪtə
 
/

sustantivo

Astronomy
  • A refracting telescope with a split objective lens, used for finding the angular distance between two stars.
    Más ejemplos en oraciones
    • After the expedition the heliometer was donated to the Observatory who built a tower for it.
    • He also determined the distances, using the heliometer, of twenty of the brighter and nearer Southern stars.
    • 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.

Origen

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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Palabra del día astrogation
Pronunciación: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space