來自韋伯的螺旋星系 NGC 2566
Spiral Galaxy NGC 2566 from Webb

發表日期:2025-05-26
螺旋星系 NGC 2566 的中心發生了什麼?首先,特寫紅外影像中似乎從中心射出的八條射線並不真實--它們是韋伯太空望遠鏡本身的機械結構造成的衍射尖峰。NGC 2566 的中心很亮,但並不異常,這意味著它很可能包含一個超大質量黑洞,儘管目前並不活躍。NGC 2566 距離我們只有 7600 萬光年,我們今天看到的 NGC 2566 的光線是在恐龍漫遊地球的時候留下的。這個風景如畫的星系距離地球很近,包括韋伯望遠鏡和哈勃望遠鏡在內的地球望遠鏡可以分辨出恆星可能形成的氣體和塵埃湍流雲,因此可以對恆星的演化進行研究。NGC 2566 的大小與我們的銀河系相似,它的顯著特徵是明亮的中央條帶和突出的外旋臂。
原文:What’s happening in the center of spiral galaxy NGC 2566? First, the eight rays that appear to be coming out of the center in the featured infrared image are not real — they are diffraction spikes caused by the mechanical structure of the Webb space telescope itself. The center of NGC 2566 is bright but not considered unusual, which means that it likely contains a supermassive black hole, although currently not very active. At only 76 million light years away, the light we see from NGC 2566 today left when dinosaurs roamed the Earth. The picturesque galaxy is close enough so that Earthly telescopes, including Webb and Hubble, can resolve the turbulent clouds of gas and dust where stars can form and so allows study of stellar evolution. NGC 2566, similar in size to our Milky Way Galaxy, is notable for its bright central bar and its prominent outer spiral arms.
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