ANALEMMA

Analemma

In astronomy, an analemma is a curve representing the changing angular offset of a celestial body from its mean position on the celestial sphere as viewed from another celestial body . The term is used when the observed body appears, as seen from the viewing body, to move in a way that is repeated at regular intervals, such as once a year or once a day. The analemma is then a closed curve, which does not change.

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analemma

Noun

  1. An egg-shaped or figure-eight curve that results when the Sun's position in the sky is plotted out over the year at the same hour of every day.


The above text is a snippet from Wiktionary: analemma
and as such is available under the Creative Commons Attribution/Share-Alike License.

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