Author: William Wilson Morgan
Alternate names: W. W. Morgan; 威廉·威爾遜·摩根; 威廉·威尔逊·摩根; وليم ويلسون مورغان; ويليام ويلسون مورغان; ويليام ويلسون مورجان; 威廉摩根; ویلیام ویلسون مورگان; William W. Morgan; ויליאם וילסון מורגן; ウィリアム・ウィルソン・モーガン; Ուիլյամ Ուիլսոն Մորգան; Морган, Уильям Уилсон; Морган Вільям Вілсон; Вільям Вілсон Морган; Уильям Уилсон Морган; வில்லியம் வில்சன் மார்கன்
Born: 3 Jan 1906
Died: 21 June 1994
Bio: William Wilson Morgan (January 3, 1906 – June 21, 1994) was an American astronomer and astrophysicist.[1] The principal theme in Morgan's work was stellar and galaxy classification. He is also known for helping prove the existence of spiral arms in our galaxy. In addition to his scientific achievements he served as professor and astronomy director for the University of Chicago's Yerkes Observatory in Wisconsin and was the managing editor for George Hale's Astrophysical Journal.-Wikipedia