西梅兹147

西梅茲147

西梅兹147（Simeis 147），又被称为Sh2-240、義大利麵星雲（Spaghetti Nebula），是一个跨越金牛座和御夫座的超新星遗迹。由于其极低的亮度而很难被观察到，1952年在克里米亚天文台使用一个25英寸的施密特-卡塞格林望远镜发现了它。

这个超新星遗迹非常大，视尺度大概为3度，距离地球大约为3000(±350)光年[1][2]，大小为41.9秒差距[2]（等于137(±25)光年）[1][3]。据估计Simeis 147约有40,000年的历史。[1][3][4]

参考

  1. ^ 1.0 1.1 1.2 NASA Astro picture of the day - Simeis 147 （页面存档备份，存于互联网档案馆） (accessed 15 May 2009)
  2. ^ 2.0 2.1 Galaxymap.org - Sharpless Catalogue （页面存档备份，存于互联网档案馆） (accessed 15 May 2009)
  3. ^ 3.0 3.1 Skyfactory.org - Simeis147 info （页面存档备份，存于互联网档案馆） (accessed 15 May 2009)
  4. ^ 存档副本. [2011-02-12]. （原始内容存档于2021-03-25）. 


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