Alfred Harrison Joy Guide, Meaning , Facts, Information and Description
Alfred Harrison Joy (September 23 1882 – April 18 1973) was an American astronomer.After graduating, he spent ten years teaching at the American University of Beirut. When World War I prevented his return to Beirut, he joined the staff of Mount Wilson Observatory and remained there nearly sixty years.
He won the Bruce Medal in 1950.
A crater on the Moon is named after him.