Stars, atoms and electrons are concepts in the same way a ball is: they represents something in reality in a more human friendly or Abstract way, (=conceptual element) that what they are i.e a star is a collection ofv10^128 particles, some of them under going nuclear fussion, a ball is a generslization of plasticity bearing objects of the size that are used by Humans to play
Is there a more adequate definition of what makes a concept that represents physical entities?
And, are these concepts ultimately scientific and independent of human-centered conceptions about reality?