Moon-gazers were treated to the longest lunar eclipse in 11 years last night, with the total eclipse phase lasting 100 minutes. Well, moon-gazers in Europe, Africa, Asia, and Australia, that is. Americans missed out on a truly spectacular occurrence, thanks to the fact that this was a "deep lunar eclipse." The phenomenon, in which the moon exudes a coppery color, depends on the amount of ash and dust in the atmosphere—and there was plenty of it overnight, thanks to a recently erupted Chilean volcano. It made the moon appear orange or red, especially in Asia, reports the AP. Check out photos in the gallery. (More lunar eclipse stories.)