The Big Dipper


影像版權與提供: Jerry Lodriguss
Explanation:
      This grouping of stars is one of the few things that has likely been seen, and will be seen, by every generation. The Big Dipper is not by itself a constellation. Although part of the constellation of the Great Bear (Ursa Major), the Big Dipper is an asterism that has been known by different names to different societies. Five of the Big Dipper stars are actually near each other in space and were likely formed at nearly the same time. Connecting two stars in the far part of the Big Dipper will lead one to Polaris, the North Star, which is part of the Little Dipper. Relative stellar motions will cause the Big Dipper to slowly change its apparent configuration over the next 100,000 years.  
說明:
      這群恆星是少數幾個在每個世代都被視為同一群星星的星群。北斗七星本身並不是一個星座。雖然它只是大熊座 (Ursa Major) 的一部份，北斗七星卻是在不同的社會中擁有著不同名字的星群。北斗七星之中有五顆星彼此非常接近，甚至可能是同時生成的。利用北斗七星杓口兩顆星的連線可以找到位於小熊座的北極星。在接下來的100,000年間，恆星之間的相對運動會使得北斗七星的外形慢慢地改變。
資料來源: Catching the Light
                   Scientific American
               Department of Physics, NCKU

貌似看不懂的幹活

嗯，感谢知识分享啦

感謝大大無私分享

這一切都是北斗的宿命阿= =
我們說的北斗 應該是下面那ㄧ個 有看北斗神全都知道北斗七星漲啥樣^^

感謝大大分享∼∼
讓小弟我又吸收了一些知識∼∼
{:3_256:}

好美的星空

好浪漫的感覺:D

美麗的星辰 供大家一起欣賞

謝謝大大無私的分享受!!!!!!

感謝分享!!

楼上的说的不错~~~~~~~~~

其實應該是
下面的七顆星是我們所謂的"北斗七星"  也就是大熊星座

上面比較小的七顆星則是小熊星座

而小熊星座的尾巴那一顆星，就是北極星

感謝大大的無私分享~~~~~

哇  太長見識了

難道兩個都是北斗七星

會不會太瞎了點

介紹一下吧mie_09

:@ :'( :o ;P :$

這張圖是再說
有兩個北斗七星嘛＠＠？