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declination circle

noun
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Definition of declination circle

: one of the setting circles of an equatorial mounting fastened to the declination axis to indicate the declination to which the telescope is pointing

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“Declination circle.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/declination%20circle. Accessed 12 December 2019.

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