What does HA mean in Unit Measures?
This page is about the meanings of the acronym/abbreviation/shorthand HA in the Miscellaneous field in general and in the Unit Measures terminology in particular.
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What does HA mean?
- hour angle, HA(noun)
- (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