SN 1006：来自哈勃的超新星带
(原标题: SN 1006: A Supernova Ribbon from Hubble)
2023-08-06
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是什么创造了这个不寻常的太空丝带？答案是：古人类所见过的最猛烈的爆炸之一。早在公元1006年，狼星座的一次恒星爆炸发出的光到达了地球，在天空中形成了一颗比金星还亮的“客星”，并持续了两年多。这颗超新星，现在编号为SN 1006，发生在大约7000光年远的地方，留下了一个巨大的遗迹，今天仍在继续膨胀和褪色。这张照片是正在膨胀的超新星遗迹的一小部分，它主要是一个向外移动的薄激波锋，它加热并电离周围的气体。超新星遗迹SN 1006现在的直径接近60光年。
查看原文解释
What created this unusual space ribbon? The answer: one of the most violent explosions ever witnessed by ancient humans. Back in the year 1006 AD, light reached Earth from a stellar explosion in the constellation of the Wolf (Lupus), creating a "guest star" in the sky that appeared brighter than Venus and lasted for over two years. The supernova, now cataloged at SN 1006, occurred about 7,000 light years away and has left a large remnant that continues to expand and fade today. Pictured here is a small part of that expanding supernova remnant dominated by a thin and outwardly moving shock front that heats and ionizes surrounding ambient gas. The supernova remnant SN 1006 now has a diameter of nearly 60 light years.