polar axis

noun

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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Cite this Entry

“Polar axis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polar%20axis. Accessed 22 Nov. 2024.

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