How is the parallax angle of a star calculated? I am asking about how the apparent move of a nearby star in the sky is converted to an angle, not how to
![Angular distance ∆ between two points R 1 = (α 1 , δ 1 ) and R 2 = (α... | Download Scientific Diagram Angular distance ∆ between two points R 1 = (α 1 , δ 1 ) and R 2 = (α... | Download Scientific Diagram](https://www.researchgate.net/publication/1796678/figure/fig2/AS:670025899855876@1536758031196/Angular-distance-between-two-points-R-1-a-1-d-1-and-R-2-a-2-d-2-Here-P.png)
Angular distance ∆ between two points R 1 = (α 1 , δ 1 ) and R 2 = (α... | Download Scientific Diagram
![Suppose that two stars in a binary star system are separated by a distance of 80 million kilometers and are located at a distance of 130 light-years from Earth. What is the Suppose that two stars in a binary star system are separated by a distance of 80 million kilometers and are located at a distance of 130 light-years from Earth. What is the](https://homework.study.com/cimages/multimages/16/circle7921438242596883316.png)