中文翻譯:
很久很久以前,在距離我們50萬光年的遙遠星系當中,一顆星星爆炸了!這次爆炸叫做超新星,天文學家第一次在地球上觀察到它是在7月14日。這顆引起熱烈討論的超新星被命名為supernova 2025rbs。現在,它是我們天空中最亮的超新星,屬於Ia型超新星,這種超新星的形成通常是因為一顆白矮星從它的伴星那裡吸收了物質後進行了熱核爆炸呢。Ia型超新星對我們了解宇宙的距離有很大幫助。2025rbs的家是NGC 7331,這是一個明亮的螺旋星系,位於北方的飛馬座當中。NGC 7331以其美麗而著稱,還常常被拿來跟我們的銀河系相比喔!
原文:
A long time ago in a galaxy 50 million light-years away, a star exploded. Light from that supernova was first detected by telescopes on planet Earth on July 14th though, and the extragalactic transient is now known to astronomers as supernova 2025rbs. Presently the brightest supernova in planet Earth’s sky, 2025rbs is a Type Ia supernova, likely caused by the thermonuclear detonation of a white dwarf star that accreted material from a companion in a binary star system. Type Ia supernovae are used as standard candles to establish the distance scale of the universe. The host galaxy of 2025rbs is NGC 7331. Itself a bright spiral galaxy in the northern constellation Pegasus, NGC 7331 is often touted as an analog to our own Milky Way.
來源:NASA每日圖片