This paper expands upon Version XII – The Hunt–Lyra Informational Luminosity Law (ILL) by presenting the first comprehensive empirical validation of the Law across multiple astrophysical regimes. Using published data from stellar, compact-object, and galactic-core observations, the study tests the proportionality between informational flux and radiative luminosity predicted by the ILL. Results across thirty distinct regimes — including main-sequence stars, red giants, white dwarfs, neutron stars, magnetars, quasars, and black holes — demonstrate a near-linear correlation spanning more than thirty orders of magnitude in power output. Propagated uncertainties and log-log analyses confirm the Law’s predictive accuracy within standard observational limits. This work marks the transition of Informational Cosmology from conceptual framework to empirical science, establishing the ILL as a universal informational-thermodynamic relation. All data align with the predicted proportionality, supporting the hypothesis that information diffusion governs the energetic behaviour of astrophysical systems at every scale.
Nathan et al. (Sun,) studied this question.