2026年2月5日
NGC 1275 in the Perseus Cluster
Image Credit & Copyright: Michal Wierzbinski, Hellas-Sky
Explanation: Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. Wild-looking at visible wavelengths, the active galaxy is also a prodigious source of x-rays and radio emission. NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy’s core. Narrowband image data used in this sharp telescopic image highlights the resulting galactic debris and filaments of glowing gas, some up to 20,000 light-years long. The filaments persist in NGC 1275, even though the turmoil of galactic collisions should destroy them. What keeps the filaments together? Observations indicate that the structures, pushed out from the galaxy’s center by the black hole’s activity, are held together by magnetic fields. Also known as Perseus A, NGC 1275 itself spans over 100,000 light years and lies about 230 million light years away.
Tomorrow’s picture: pixels in space
英仙座星系团中的NGC 1275
影像提供与版权: Michal Wierzbinski, Hellas-Sky
说明: 活跃星系NGC 1275是大型且相对较邻近的英仙座星系团的中心与主要成员。在可见光波段，这颗活跃星系呈现出令人惊叹的景象，同时也是X射线和电波辐射的巨大来源。NGC 1275会吸积物质，整个星系都会落入其中，最终为星系核心的超大质量黑洞提供物质。这张清晰的望远镜影像使用了窄影像数据，突显了由此产生的星系残骸和发光气体的丝状结构，其中一些丝状结构长达20,000光年。尽管星系碰撞的剧烈扰动本应摧毁这些丝状结构，但它们在NGC 1275中仍然存在。是什么将这些丝状结构维系在一起呢？观测结果显示，这些结构是由黑洞活动从星系中心向外推挤而来，并由磁场维系在一起。NGC 1275也被称为英仙座A，横跨超过10万光年，距离地球约2.3亿光年。
明日的图片: pixels in space
