M1：不可思议的扩张蟹
(原标题: M1: The Incredible Expanding Crab)
2023-11-15
浏览次数: 18
编号为M1的蟹状星云是查尔斯·梅西耶著名的非彗星列表中的第一个。事实上，蟹状星云现在被认为是超新星遗迹，是一颗大质量恒星死亡爆炸后不断膨胀的碎片云。天文学家在1054年见证了蟹状星云的剧烈诞生。这个直径约10光年的星云仍在以每秒1500公里的速度膨胀。通过比较哈勃太空望远镜和詹姆斯韦伯太空望远镜拍摄的这些清晰图像，你可以看到它的膨胀。2005年哈勃和2023年韦伯分别用可见光和红外光捕捉到了蟹状星云动态的碎片状细丝。这个宇宙甲壳类动物位于大约6500光年外的金牛座。
查看原文解释
Cataloged as M1, the Crab Nebula is the first on Charles Messier's famous list of things which are not comets. In fact, the Crab Nebula is now known to be a supernova remnant, an expanding cloud of debris from the death explosion of a massive star. The violent birth of the Crab was witnessed by astronomers in the year 1054. Roughly 10 light-years across, the nebula is still expanding at a rate of about 1,500 kilometers per second. You can see the expansion by comparing these sharp images from the Hubble Space Telescope and James Webb Space Telescope. The Crab's dynamic, fragmented filaments were captured in visible light by Hubble in 2005 and Webb in infrared light in 2023. This cosmic crustacean lies about 6,500 light-years away in the constellation Taurus.