polar axis

noun

Definition of polar axis

1 : the axis of rotation of an equatorial mounting that is set parallel to the earth's axis permitting a telescope to be turned in hour angle or right ascension
2 : the reference line in polar coordinates from which the angle coordinate is measured

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Learn More About polar axis

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Cite this Entry

“Polar axis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polar%20axis. Accessed 20 Jan. 2022.

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