2020 January 19

M1: The Incredible Expanding Crab Nebula
Video Credit & Copyright:
Detlef Hartmann

Explanation: 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 2017, an image was produced with the same telescope and camera from a remote observatory in Austria. Combined in the time-lapse movie, the 10 images represent 32 hours of total integration time. The sharp, processed frames even reveal the dynamic energetic emission within the incredible expanding Crab. The Crab Nebula lies about 6,500 light-years away in the constellation Taurus.

M1:迅速扩张中的蟹状星云
视频来源与版权:
Detlef Hartmann

说明:你看到过蟹状星云膨胀吗?蟹状星云又被称为M1,是著名的查尔斯·梅西耶著名的非彗星名录中的第一个。事实上,现在已知蟹状星云是一个超新星爆发遗迹,一颗大质量恒星爆炸后形成的一个正在扩张的碎片云。1054年,当时的天文学家目睹了蟹状星云的猛烈诞生。时至今日,它已经扩张到约10光年大小,而且仍然在以每秒1000公里的速度在膨胀。在过去的十年里,他的扩张过程被记录在这令人惊叹的延时视频中。从2008年到2017年,利用奥地利一个远程天文台的同一台望远镜和照相机拍摄一幅蟹状星云的图像。并将这10幅总曝光时长为32小时的照片合成为这段延时视频。经过锐化并处理的帧画面,甚至在扩张的蟹状星云内呈现出了动态高能辐射。蟹状星云距离我们6500光年,在金牛座可以找到它。

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