Photogravitational Derivation of G and Stellar Ordering on the Φ Spectrum

This paper extends the photogravitational framework proposed in “Photogravitational Derivation of the Gravitational Constant from Stellar Data” by applying the method to a broader set of nine stars and one black hole (Cygnus X-1). Building on the earlier single-star analysis, we validate the model’s robustness across a diverse astrophysical spectrum. We also introduce a Φ-based stellar sequence that orders objects by the ratio of radiative output to gravitational strength, proposing Φ as a structural index unifying photonic and gravitational properties.