rreth orë

rreth orë

A great circle of the celestial sphere passing through the celestial poles and a celestial body or the vernal equinox. An hour circle moves with the body as the celestial sphere rotates, unlike the celestial meridian of a point that remains fixed.

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Parte de vorbire: substantiv
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Industrie/Domeniu: Astronomie
Categorie: Marte
Company: NASA
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