👉 The term "beryline" is typically used in astronomy and astrophysics to describe a line of stars that are aligned along one of two principal axes, known as the Beryllium or Alfvénian axis. These lines are thought to be important for understanding the distribution of mass within galaxies and also play a role in the evolution of stars and galaxy structures. Berylines can be classified into two main types: those that are aligned along the Beryllium axis (which