Part 1. Elliptical, spiral, and irregular. For example the Milky Way is a spiral galaxy, elliptical galaxy is a type of galaxy it with an approximately ellipsoidal shape and a smooth nearly featureless image, A regular galaxy does not have a distinct regular shape and like spiral and elliptical.
Part 2. To find the distance of a light year, you multiply your speed by the number of hours in a year. (8766) The result: One light year equals 5,878,625,370,000 miles.
