Its [Acuben’s] stellar classification is given as kA7VmF0/2III/IVSr, indicating an Am star with calcium K-lines similar to an A7 main sequence star and hydrogen lines more like an F0 giant or subgiant star.
Indeed, if the term matter is taken to mean solid substance as opposed to energy which is understood to mean a force of some sort, then the use of the former is entirely misleading.
To do this, we will first consider the fundamental character of the material world in which we have our physical existence in order to accurately perceive the raw stuff with which our consciousness must work.