If the closest star to earth is Proxima Centauri and the Canis Major Dwarf Galaxy is the closest galaxy if there are

If the closest star to earth is Proxima Centauri and the Canis Major Dwarf Galaxy is the closest galaxy if there are billions of stars in just our universe how can astronomers tell if they’re definatley the closest?

Posted on March 14, 2013 by in Question. Comments Off on If the closest star to earth is Proxima Centauri and the Canis Major Dwarf Galaxy is the closest galaxy if there are