orbitalach
Orbitalach is a term used primarily in speculative discussions of orbital dynamics and in science fiction worldbuilding to denote a class of orbital configurations that exhibit stable, synchronized evolution of orbital elements in the presence of perturbations. It is not a recognized quantity in formal celestial mechanics, and there is no standardized definition in scientific literature.
Origin and usage: The term appears in fan-made glossaries and collaborative worldbuilding resources, where it is
Characterizations: Commonly, orbitalach is treated as a scalar index or multi-parameter regime that categorizes orbital behavior
Relation to real concepts: While inspired by real ideas such as orbital resonance, secular dynamics, and nodal
See also: orbital resonance, secular dynamics, nodal regression, orbital stability.