HA as NOUN

1. Meaning
   • (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
   
   Synonym(s)
   • hour angle (what does hour angle mean?)
   
   Hypernyms(s) HA is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • angular distance (what does angular distance mean?)