棒旋星系NGC 1300

2022年10月16日

Barred Spiral Galaxy NGC 1300
Image Credit: NASA ESA, Hubble Heritage

Explanation: Across the center of this spiral galaxy is a bar. And at the center of this bar is smaller spiral. And at the center of that spiral is a supermassive black hole. This all happens in the big, beautiful, barred spiral galaxy cataloged as NGC 1300, a galaxy that lies some 70 million light-years away toward the constellation of the river Eridanus. This Hubble Space Telescope composite view of the gorgeous island universe is one of the most detailed Hubble images ever made of a complete galaxy. NGC 1300 spans over 100,000 light-years and the Hubble image reveals striking details of the galaxy’s dominant central bar and majestic spiral arms. How the giant bar formed, how it remains, and how it affects star formation remains an active topic of research.

Tomorrow’s picture: burst rings

棒旋星系NGC 1300
影像提供: NASA ESA, Hubble Heritage

说明: 这个螺旋星系有核心棒，核心棒的中心有个小螺旋，而螺旋的中心则藏着一颗超大质量黑洞。上述的这些特征，全都出现在波江座方向，离我们约7千万光年远的庞大美丽棒旋星系NGC 1300里。此外，呈现这个壮丽宇宙岛的此幅哈伯太空望远镜组合影像，更是哈勃望远镜完整星系影像中最细致的数幅之一。这幅以跨幅超过100,000光年的NGC 1300为主题之哈伯望远镜影像，极为清晰的呈现了它大型的核心棒及壮丽的螺旋臂。至于这个庞大的核心棒是如何形成、维持及影响它的恒星诞生，至今仍是活跃的研究课题。

明日的图片: burst rings