Synonyms and definition of the word or term
- S: (n) hour angle (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day.
- hour angle; HA; angular distance;
- Find out more about Ha on Wikipedia.
- Check out the etymology of Ha on Etymonline.com.
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