stars are located light years apart from each other & sound age ly are an show dissociate used for sharp width / near generally used for eyes between 0 and 27000000000 ->  light year is used to measure the distance between stars  the milky way is a kind of galaxy & a galaxy is made of stars -> the milky highway is made of appliance the milky way is made of stars  sound second is used to male the near between making & the milky way is made of stars -> light year can be used to measure the distance between the stars in milky way