The rotation period of 103 Hera is 85466.9.
Canadian James Craig Watson, who died of peritonitis in Madison, Wisconsin, was the man who discovered 101 Helena.
103 Hera | rotation period | 85466.9 101 Helena | discoverer | James Craig Watson James Craig Watson | state of origin | Canada James Craig Watson | death place | Madison, Wisconsin James Craig Watson | death cause | Peritonitis