M1：膨胀的蟹状星云
(原标题: M1: The Expanding Crab Nebula)
2023-03-20
浏览次数: 31
你的眼睛好到能看到蟹状星云的膨胀吗？蟹状星云被编目为M1，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。今天，这个星云的直径大约是10光年，它仍在以每秒1000公里的速度膨胀。在过去的十年里，它的扩张被记录在这部令人惊叹的延时电影中。从2008年到2022年的每一年，奥地利一个遥远的天文台都用同样的望远镜和相机拍摄了一幅图像。经过处理的清晰画面甚至揭示了中心快速旋转的脉冲星周围的动态能量发射。蟹状星云位于距金牛座约6500光年的地方。
查看原文解释
Are your eyes good enough to see the Crab Nebula expand? The Crab Nebula is cataloged as M1, the first on Charles Messier's famous list of things which are not comets. In fact, the Crab is now known to be a supernova remnant, an expanding cloud of debris from the explosion of a massive star. The violent birth of the Crab was witnessed by astronomers in the year 1054. Roughly 10 light-years across today, the nebula is still expanding at a rate of over 1,000 kilometers per second. Over the past decade, its expansion has been documented in this stunning time-lapse movie. In each year from 2008 to 2022, an image was produced with the same telescope and camera from a remote observatory in Austria. The sharp, processed frames even reveal the dynamic energetic emission surrounding the rapidly spinning pulsar at the center. The Crab Nebula lies about 6,500 light-years away toward the constellation of the Bull (Taurus).
© Detlef Hartmann