Question

the system that is used for calculating the position of zodiac and constellation from a fixed point is called​

Answer 1

celestial coordinate system

Answer 2

System used for calculating the position of zodiac and constellation from a fixed point is the ​celestial coordinate system.

• The system is a complex system designed to accurately determine the ideal locations of active satellites, visible galaxies, stars,  constellations and other celestial objects relative to physical reference points available to the observer.  
• if the proper distance of the chief object is unknown or insignificant, may determine the specific location of an object in three dimensional space or simply map its direction on a celestial sphere.
• For example, in celestial alignment method, which is the First Point of Aries, the position of verdant equinox is employed as a source spot.