Primary Application of Cosmic Geometry—Proof of Equivalence and Invariant of Astronomical Object’s Luminosity and Absolute Magnitude

Abstract

Cosmic geometry is cosmic even gravity geometry derived by General Relativity. When redshift Z > 0.0041, one astronomical object lightness (flux density or apparent magnitude) is distance’s vari-able and its corresponding luminosity or absolute magnitude is the variable that doesn’t change as distance varies. Above is presented as theory in basic textbook, but without literature of mathe-matical derivation and validation for its universality. The following is the strict mathematical de-rivation and validation for its universality (Luminosity and absolute magnitude is equivalent and invariant). And universality of gravitational lens galaxy mass’s calculation is validated by using cosmic even gravity geometry and central gravity geometry. Validation above is based on basic data from observation of galaxy, which can prove the universality of cosmic geometry.