Galaxy
Elliptical galaxies have a large range in size. The giant elliptical galaxy can be over a more 1 million light years and the smallest (know as "dwarf elliptical galaxy") are less than one-tenth the size of Milky Way The effective radius defines the area from which half its light comes. The mass of elliptical galaxy is also large. A giant elliptical galaxy can have mass of 1013 (many trillions) of solar masses.