M1：蟹状星云
(原标题: M1: The Crab Nebula)
2021-12-24
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蟹状星云被编目为M1，是查尔斯·梅西耶在18世纪著名的非彗星清单上的第一个物体。事实上，蟹状星云现在被认为是超新星遗迹，是1054年天文学家目睹的一颗大质量恒星死亡爆炸的碎片。这幅清晰的地面望远镜图像结合了宽带彩色数据和窄带数据，这些数据跟踪了电离硫、氢和氧原子的发射，以探索仍在膨胀的星云中纠结的细丝。蟹状脉冲星是现代天文学家所知的最奇特的天体之一，它是一颗每秒旋转30次的中子星，在星云中心附近可以看到一个亮点。就像宇宙发电机一样，这个坍缩的恒星核心残骸为蟹状星云在电磁波谱上的发射提供了动力。蟹状星云的跨度约为12光年，距离金牛座仅6500光年。发射更新：詹姆斯·韦伯太空望远镜
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The Crab Nebula is cataloged as M1, the first object on Charles Messier's famous 18th century list of things which are not comets. In fact, the Crab is now known to be a supernova remnant, debris from the death explosion of a massive star, witnessed by astronomers in the year 1054. This sharp, ground-based telescopic view combines broadband color data with narrowband data that tracks emission from ionized sulfur, hydrogen, and oxygen atoms to explore the tangled filaments within the still expanding cloud. One of the most exotic objects known to modern astronomers, the Crab Pulsar, a neutron star spinning 30 times a second, is visible as a bright spot near the nebula's center. Like a cosmic dynamo, this collapsed remnant of the stellar core powers the Crab's emission across the electromagnetic spectrum. Spanning about 12 light-years, the Crab Nebula is a mere 6,500 light-years away in the constellation Taurus. Launch Update: James Webb Space Telescope
© Michael Sherick