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A zenith telescope is a type of telescope that is designed to point straight up at or near the zenith. They are used for precision measurement of star positions, to simplify telescope construction, or both. A classic zenith telescope, also known as a zenith sector employs a strong altazimuth mount, fitted with levelling
A zenith telescope is a type of telescope designed to point straight up at or near the zenith, and used for precision measurement of star positions, to simplify telescope construction, or both. The NASA Orbital Debris Observatory and the Large Zenith Telescope are both zenith telescopes, since the use of liquid mirrors meant these telescopes ...
Thus, where the zenith is directly above an observer, the nadir is underfoot. The zenith and nadir form the two poles of the horizon line. naked eye. Also bare eye or unaided eye. The human eye as used without any magnifying or light-collecting optical aid, such as a telescope, nor any eye protection.
The Large Zenith Telescope (LZT) was a 6.0-meter diameter liquid-mirror telescope located in the University of British Columbia's Malcolm Knapp Research Forest, about 70 km (43 mi) east from Vancouver, British Columbia, Canada (north from Maple Ridge). It was one of the largest optical telescopes in the world, but still quite inexpensive. The ...
An astronomical instrument is a device for observing, measuring or recording astronomical data.They are used in the scientific field of astronomy, a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time.
To determine the zenith point of the circle, the telescope was directed vertically downwards at a basin of mercury, the surface of which formed an absolutely horizontal mirror. The observer saw the horizontal wire and its reflected image, and moving the telescope to make these coincide, its optical axis was made perpendicular to the plane of ...
LST – (astrophysics terminology) local sidereal time, the right ascension that is currently at the zenith; LT – (telescope) Liverpool Telescope; LTE – (astrophysics terminology) Local Thermodynamic Equilibrium, a state where variations in temperature, pressure, etc. do not vary on small scales
The zenith telescope constructed by Jesse Ramsden in 1802 was used to determine the latitude of many stations of the Principal Triangulation of Great Britain. This portable instrument was designed to bring observatory precision to fieldwork. The outer frame stood about 12 ft (3.7 m) tall and the telescope mounted on an inner frame was 8 ft (2.4 ...