Astronomy Picture of the Day——M1：迅速扩张中的蟹状星云

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 inAustria. 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 emissionwithin 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

你看到过蟹状星云膨胀吗？蟹状星云也被称为M1，是著名的梅西耶非彗星名录中的第一个。实际上，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一个正在扩张的碎片云。1054年，地球上的天文学家们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。经过锐化处理，甚至在扩张的蟹状星云内呈现出了动态高能辐射。蟹状星云距离地球6500光年，位于金牛座方向。

高清原图地址：

https://www.youtube.com/embed/qL1f40NPG8w?rel=0

近期文章：

Astronomy Picture of the Day——被吞食的木星与银河

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Astronomy Picture of the Day——南冕座的恒星与尘埃

NASA

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