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Concept information

... > mathematical technique > frame of reference > coordinate system > astronomical coordinate > equatorial coordinate system > hour angle
... > astronomical technique > astrometry > coordinate system > astronomical coordinate > equatorial coordinate system > hour angle

Terme préférentiel

hour angle  

Définition(s)

  • In astronomy and celestial navigation, the hour angle is the angle between two planes: one containing Earth's axis and the zenith (the meridian plane), and the other containing Earth's axis and a given point of interest (the hour circle). The hour angle is paired with the declination to fully specify the location of a point on the celestial sphere in the equatorial coordinate system. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Hour_angle)

Concept(s) générique(s)

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http://data.loterre.fr/ark:/67375/MDL-VS6RVLB1-N

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RDF/XML TURTLE JSON-LD Date de création 10/10/2022, dernière modif. 10/10/2022