101_Helena | discoverer | James_Craig_Watson James_Craig_Watson | almaMater | University_of_Michigan 101_Helena | orbitalPeriod | 1516.6700000000003 (days) James_Craig_Watson | nationality | Canada James_Craig_Watson | deathPlace | Madison,_Wisconsin
James Craig Watson was a canadian national who discovered the 101 Helena which has a orbital period of 1516.6700000000003 days. He studied at the university of Michigan and died in Madison, Wisconsin.