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What is the parallax of Proxima Centauri?

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Diagram illustrating how astronomers calculate the distance to a star using parallax: Earth is shown in two positions on opposite sides of its orbit around the Sun, with lines extending to a nearby star X and further to distant background stars. The apparent shift in star X's position, measured as angle A, is used to determine its distance, with the baseline labeled as 186,000,000 miles. — Parallax Calculating stellar distances.

The parallax of Proxima Centauri is 0.77 arc seconds.1

In astronomy, parallax is a geometric method used to determine the distance to celestial objects by measuring the apparent shift in a star's position against background stars as Earth orbits the Sun. Because Proxima Centauri is the closest star to our solar system, it exhibits one of the largest parallax angles observable.12