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
The discoverer of 101 Helena is James Craig Watson, a Canadian national and graduate of the University of Michigan who died in Madison, Wisconsin. 101 Helena has an orbital period of 1516.6700000000003 days.