Parallax (from the Greek parallaxis – parallax) is a phenomenon in which there is a violation of symmetry.
The transverse displacement of an object when observing it from two points that are outside the straight line that connects the observer and the object is called parallax. The distance to an object can be determined by measuring the angles between the directions to it and the lines that connect them. Also, using the length of the segment between the measurement points, called the base, you can calculate the distance to the object.
According to the data presented in astronomy, the phenomena of parallax of objects of the Solar system and some stars occur due to the daily (see Day) rotation of the Earth and annual (see Year) movement around the Sun. You can also use methods for determining distances to space objects using Parallax.
The annual parallax of a star is the angle at which the average radius of the Earth’s orbit can be observed, perpendicular to the direction of the star.
Parallax
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