polar axis

noun

Of an equatorial mounting, the axis of rotation that is positioned parallel to the axis of the Earth, allowing a telescope to be turned in an hour angle or a right ascension.

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Meanings

nounpolar axis (plural polar axes)

plural polar axes

  1. astronomyOf an equatorial mounting, the axis of rotation that is positioned parallel to the axis of the Earth, allowing a telescope to be turned in an hour angle or a right ascension.
  2. mathematicsA fixed line, usually horizontal, used in polar coordinates and from which an angle coordinate is measured.
Cite this entry
APA

polar axis. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/polar%20axis

MLA

“polar axis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/polar%20axis. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “polar axis,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/polar%20axis.

Source: polar axis on Wiktionary, CC BY-SA 4.0.