4 ms·

What differentiates a galaxy from a globular cluster? A little quick googling didn't find a satisfactory answer.

• breadbox 13y ago
  For one, globular clusters orbit galaxies. They are found in galactic halos. If a globular cluster got flung away from its parent galaxy, I suppose that it might raise the question of whether it could be classified as a galaxy in its own right. EDIT: On further reflection on the posted article, though, I'd have to say not. I think the absence of a dark matter halo and a central black hole would disqualify it from being considered a galaxy. These things are, presumably, important clues as to the formation process for galaxies.