hour angle


: the angle between the celestial meridian of an observer and the hour circle of a celestial object measured westward from the meridian

Word History

First Known Use

circa 1837, in the meaning defined above

Time Traveler
The first known use of hour angle was circa 1837

Dictionary Entries Near hour angle

Cite this Entry

“Hour angle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hour%20angle. Accessed 11 Dec. 2023.

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