5月4日 《太阳系中的怪异成员——彗星》 崔振华.shtml(国外英文资料).docVIP

5月4日 《太阳系中的怪异成员——彗星》 崔振华.shtml(国外英文资料) Cui Zhenhua, the strange member of the solar system, comet May 4th CCTV international 2004 04, 29, 1414 On December 1983 such January has served as deputy director, director, curator) generation, Researcher。 For many years, he devoted himself to the study of astronomical popularization and the history of astronomy, participated in the writing and reviewed the final version Many books such as world history of astronomy and achievements of astronomy in ancient China have won Chinese Book prizes many times. Content abstract: in the vast universe, there is a star. Its face is mysterious and elusive. It is shaped like a star A passer-by is a member of the solar system, the most bizarre member of the solar system. When it comes to comets, it is natural to link it with war, disease, and disaster In the long course of history, the fear of comets has been handed down from generation to generation. Well, comets can really bring disaster and disaster Shipped? Whats the comet really like? Will comets crash into the earth some day? Two Which comets will come to earth in 004 years? In this episode, Cui Zhenhua, former curator of the Beijing planetarium, The researcher will solve the mystery for you. The comet which is composed of three parts, the core of the nucleus, the nucleus, the nucleus is wrapped in a layer called coma, The nucleus and the coma together is called the head of the comet, it is a long tail, tail, it can be said to be a comet The comet is composed of head and tail, then dwell on it, can be said that the nucleus of the coma and tail, around the head of the comet, a A layer of hydrogen cloud surrounds it, not all comets do, and some comets do. So, lets do that This layer of hydrogen clouds called cosmic cloud, some comets, some comets no, this is the structure of the comet. The comet has three orbits in its three directions. One is called an ellipse The line is elliptical, so that comets make up about 40% of comets, and