Ha (Noun)
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.
Classification
Nouns denoting two and three dimensional shapes.
Examples
- The hour angle of the star had to be calculated precisely to determine its position in the night sky.
- The astronomer used a software to find the hour angle of the planet for that specific location and time.
- A certain hour angle was used to determine when the celestial event would be visible from that latitude.
- As the observer's location changed, so did the hour angle of the observed star.
- The hour angle differed significantly from one night to another due to the Earth's rotation.