Comment by brett6781 æ£ããææã®å ¬è»¢è»é Comment by Woozah77 290 ãã¤ã³ã ã½ã¼ã¹ã¯ãã he helical model - our solar system is a vortex ãããããæ°ã«å ¥ã£ãå ´åã¯ãã¼ãï¼ããã£ã¡ã The helical model - our Galaxy is a vortex ï¼å¤ªé½ç³»ã®å ¬è»¢ï¼ 太é½ç³»ãé河系å ã®è»éãä¸å¨ããã«ã¯ç´2å2500ä¸ - 2å5000ä¸å¹´ãããã太é½ç³»ãèªçãã¦ããç¾å¨ã¾ã§ã«ç´20 - 25å¨ãã¦ããã¨èãããã¦ããã太é½ç³»ã®è»éé度ã¯217km/sã§ãç´1,400å¹´ã§1å å¹´ã8æ¥ã§1天æåä½é²ã é河系 i.minus.com/iAtC2afkODS6U.gif imgur.com/gallery/pJR5zm6 reddit.com/r/Astronomy/comment
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