[ 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
→
hour angle
※ You can download Most Useful English Words 15000 for free after posting your review!
To download this contents, you need to post your reviews for items about English learning. You can download it for free after posting your reviews.