1. (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

• ha

1. (noun) the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body

• distance

2. (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

• angular distance

1. (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

• astronomy
• uranology