What is another word for transit instrument?
Pronunciation: [tɹˈansɪt ˈɪnstɹəmənt] (IPA) 
A transit instrument is an astronomical instrument used to determine the time of passage of celestial bodies over a meridian. There are several synonyms for this instrument, including the theodolite, zenith telescope, meridian circle, and transit telescope. The theodolite is an instrument used in surveying, while the zenith telescope is primarily used to measure the altitude of objects in the sky. The meridian circle is a transit instrument specifically designed for observing the meridian of a specific location, and the transit telescope is used for observing and measuring the position of planets and stars. While these instruments may have slightly different functions, they all serve the purpose of measuring the position of celestial bodies.
