札幌站
4547 Massachusetts ("prov. designation": ) is a dark background asteroid from the central regions of the asteroid belt, approximately in diameter. It was discovered on 16 May 1990, by Japanese astronomers Kin Endate and Kazuro Watanabe at the JCPM Sapporo Station on the island of Hokkaido, Japan. The asteroid was named for the U.S. state of Massachusetts.