101_helena | discoverer | james_craig_watson <tsp> james_craig_watson | almamater | university_of_michigan <tsp> james_craig_watson | deathplace | madison,_wisconsin <tsp> james_craig_watson | deathcause | peritonitis <sep> helena (minor planet designation: 101 helena) is a large, rocky main-belt asteroid it was discovered by canadian-american astronomer j c watson on august 15, 1868, and was named after helen of troy in greek mythology this object is orbiting the sun with a period of 416 years and an eccentricity of 014 
james craig watson was the discoverer of 101 helena. his alma mater was the university of michigan. he died of peritonitis in madison. wisconsin.helena was discovered by canadian-american astronomer j. c. watson in 1868