说明：  这个是程序用到的四颗可见星的所用的所有信息。其中给出7个可见星的信息，选则其中最好的四颗。请把信息内容复制到.txt中。
(This is the program used four visible stars all of the information used. Which are given seven visible stars of information, the election is the best of four. Please copy the information content. Txt in.)