How Does Exoplanet Use Pi

Pi is used a lot in planetology. It is used to search for planets outside our solar systems. It is also used for characterizing them. These planets are called exoplanets. The volume of a planet is approximately 4/3 pi times the radius^3. This formula is necessary to finding the density of a planet. The density of something is equivalent to mass/volume. The density of a planet can tell if a plant is rocky, gaseous, or in between. You can also use pi in the calculations surrounding the atmosphere of an exoplanet. This is because the atmosphere can be represented spherically and spheres always involve pi. You can also use pi to estimate the number of seconds per year-10 million seconds pi. Lastly, pi is also used in the optics equations related