Mass_of_Black_Hole_By_Sohail_String_Unification_Theory

The Sohail-String Unification Model (SSUM) presents a novel 11D substrate framework that replaces stochastic cosmological evolution with deterministic topological laws. This paper demonstrates that the physical dimensions of the Milky Way galaxy and the mass of its central supermassive black hole, Sagittarius A*, are emergent properties of a specific nodal connectivity matrix (C = 844, 561) and a universal scale-slip invariant (ηs = 0.0041). SSUM successfully derives the galactic diameter as ≈ 105, 700 light-years and the central black hole mass as ≈ 4.31 × 106M⊙. These results align with NASA and GAIA observational data with high precision, suggesting that galactic structures are macroscopic topological solitons anchored by the same constants governing subatomic particle mass ratios.