Today, 73 years ago, on 18 January 1952 (December 22, 1951), Taiwan astronomer Tsai Sheng discovered Kirin's irregular new transition. Tsai Sheng (1923¡ª) astronomer. Taiwan Taipei City. After graduating from high school, he went to Japan to study astronomy. In 1947 he returned to Taiwan as Technician of the Taiwan Provincial Meteorological Bureau, and worked at the Central Mountain Observatory. In 1948 he established the Taipei City Astronomy Society as General Director. In 1949 he served as the monthly editor of the Taipei Observatory. In 1952 he became a technician and discovered Kirin's star BD¡ª8.1642 as a transitional star, named CSV6534 in 1961. he was a member of the International Astronomy Association. In 1964, he served as General Director of the Taipei