circle of position

Definition of circle of position

navigation
: a circle on the earth whose center is the point directly under a celestial body and whose radius is the zenith distance of the celestial body, the observer's location being somewhere on this circle — compare sumner line

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Cite this Entry

“Circle of position.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/circle%20of%20position. Accessed 17 Sep. 2021.

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