S2 star orbit precession around the black hole Sagittarius A*

As a didactic application of General Relativity and based on the Schwarzschild metric, a simulation of the orbit of the star S2 around the massive black hole Sagittarius A* is implemented. We verified that the simulated orbit is almost an ellipse, with a slow precession equal to the one recently observed. This simulation is performed using Geogebra and Excel applications.

Keywords:
General Relativity; Schwarzschild Precession; Massive Black hole; Geogebra