The video came from this study - "Monitoring stellar orbits around the Massive Black Hole in the Galactic Center" - https://arxiv.org/abs/0810.4674 https://arx

The video came from this study - "Monitoring stellar orbits around the Massive Black Hole in the Galactic Center" - https://arxiv.org/abs/0810.4674 https://arxiv.org/abs/0810.4674 the wiki article - https://en.wikipedia.org/wiki/Sagittarius_A* https://en.wikipedia.org/wiki/Sagittarius_A*