The Brian DeSimone Model 3.0: Unified Gravitational Theory for Solar Obliquity, and Universal Core Displacement

Standard models of solar system evolution struggle to reconcile several secular anomalies: the 5.96° solar obliquity, the clumping of Extreme Trans-Neptunian Objects (TNOs), and the 27.5 Myr geological "pulse." Recent 2025/2026 data from the Vera Rubin Observatory and Mars seismic sensors (Nature, Sept 2025) confirm a directional "leaning" of planetary cores toward the Sagittarius sector. The DeSimone Model (Version 3.0) employs a Unified Gravitational Theory to identify a 10 M_{\oplus} Ultra-Compact Mass (UCM) located at approximately 550 AU. The model utilizes relativistic slingshot math and chemical sublimation modeling—specifically the Nickel Tetracarbonyl (Ni(CO)_4) pathway—to analyze the anomalous 58.3 km/s arrival velocity and cold-temperature nickel vapor of comet 3I/ATLAS. Statistical convergence of four independent datasets (Astrometric, Geodesic, Seismological, and Dynamical) indicates a localized gravitational source at RA 17:53. The probability of this system-wide alignment occurring by chance is calculated at P < 10^{-11}. Conclusions: The model successfully resolves the "Visibility Fallacy" by demonstrating that a 9 cm Schwarzschild radius mass is non-thermal and only detectable via gravity. It provides a predictive framework for the March 2026 Jupiter-3I/ATLAS encounter and identifies the UCM as the primary driver of Earth's periodic extinction cycles.