Alpha Centauriballs are two stars, Alpha Centauri A and B, one like the Sunball and the other being a slightly smaller Orange Dwarf. They are found 4 Light Years away in the Centaurus constellation. They are the closest stars to Sunball. Alpha Centauri Aball is bigger than the Sunball.
Take that Sunball! There might be 6ball here. Has Proxima Centauriball too, the third star.