(Bingyin June 15), July 21, 1986, Zhang Yu Zhe's death, the principal founder of modern astronomy. Zhang Yu Zhe,


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1986 July 21, (1 $ dj�� of the death. the death of c��m) the principal founder of modern astronomy, Zhang Yu Zhe, at the age of 84 years old in 1928, only 26-year-old Zhang Yu Zhe studying the Yerkes Observatory in the United States. November 22, Zhang Yu Zhe with 60cm back light telescope a film, accidentally discovered a short strip of astrology row, he observed it to track more than a month, after the calculation of the precise location of the Fengyun new celestial and orbital elements, confirmed that this is a teeth newly discovered asteroid at the International Minor Planet Center Zhang Yu Zhe to name it, in order to express nostalgia for the motherland separated by vast oceans, he named it as "China" China asteroid in the Star on the table numbered 1125. become the Chinese people discovered new asteroids after the liberation in the Zhang Yu Zhe leadership, the Purple Mountain Observatory in 20 years 5000 asteroid observation after another to find asteroids more than 400 pieces, and three comets, and calculate the orbit of more than 100 pieces of 24 international official number and naming International in recognition of the contribution of Zhang Yu Zhe, has the United States in recent years found in 2051 the asteroid named Zhang made an outstanding contribution to the cause of the motherland astronomical Zhang Yu Zhe-election to the Purple Mountain Observatory, 42 years.