APOD251026 万圣节与鬼头星云 - 天文(Astronomy)版

 返回天文版

APOD251026 万圣节与鬼头星云

AstroAstro 2026-01-02 13:53:23

[楼主]1楼

万圣节与鬼头星云

[点击查看图片]

图像提供: NASA[1], ESA[2], Mohammad Heydari-Malayeri[3] (Observatoire de Paris[4]) et al.,

英文原文:Explanation: Halloween's origin is ancient and astronomical. Since the fifth century BC, Halloween has been celebrated as a cross-quarter day , a day halfway between an equinox (equal day / equal night) and a solstice (minimum day / maximum night in the northern hemisphere). With a modern calendar however, even though Halloween later this week, the real cross- quarter day will occur the next week. Another cross-quarter day is Groundhog Day . Halloween's modern celebration retains historic roots in dressing to scare away the spirits of the dead. Perhaps a fitting tribute to this ancient holiday is this view of the Ghost Head Nebula taken with the Hubble Space Telescope . Similar to the icon of a fictional ghost , NGC 2080 is actually a star forming region in the Large Magellanic Cloud , a satellite galaxy of our own Milky Way Galaxy . The Ghost Head Nebula ( NGC 2080 ) spans about 50 light-years and is shown in representative colors. 说明：万圣节的起源[5]古老且与天文学有关。自西元前五世纪以来，人们就将万圣节[6]就被作为一个交季节日[7]来庆祝，这一天位于秋分[8]（昼夜等长）和冬至[9]（北半球昼最短，夜最长）之间。然而，根据现代历法[10]，虽然本周晚些时候就是万圣节，但真正的交季节日要到下周才发生。另一个交季节日是土拨鼠日[11]。[12] 万圣节的现代庆祝活动保留了历史根源[13]，例如穿着吓人的服装[14]以驱赶亡灵。或许，这张用哈伯太空望远镜[15]拍摄的鬼头星云[16]照片是对这个古老节日的恰如其分的致敬。 NGC 2080 类似于虚构[17]的幽灵[18]图象，实际上NGC 2080是大麦哲伦星云[19]（我们银河系[20]的卫星星系）中的一个恒星[21]形成区。鬼头星云（NGC 2080[22]）跨度约 50 光年[23]，并呈现出代表性的颜色。