邻近宇宙的恒星流
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标签： 星系合并
M64：黑眼星系特写
2023年7月20日 M64: The Black Eye Galaxy Close Up Image Credit: NASA, ESA, Hubble, HLA; Processing: Jonathan Lodge Explanation: This magnificent spiral galaxy is Messier 64, often called the Black Eye Galaxy or the Sleeping Beauty Galaxy for its dark-lidded appearance in telescopic views. The spiral’s central region, about 7,400 light-years across, is pict...
星系大战: M81与M82
2023年1月20日 Galaxy Wars: M81 and M82 Image Credit & Copyright: Andreas Aufschnaiter Explanation: The two dominant galaxies near center are far far away, 12 million light-years distant toward the northern constellation of the Great Bear. On the right, with grand spiral arms and bright yellow core is spiral galaxy M81. Also known as Bode’s galaxy, M8...
NGC 4651：雨伞星系
2022年2月7日 NGC 4651: The Umbrella Galaxy Image Credit & Copyright: CFHT, Coelum, MegaCam, J.-C. Cuillandre (CFHT) & G. A. Anselmi (Coelum) Explanation: It’s raining stars. What appears to be a giant cosmic umbrella is now known to be a tidal stream of stars stripped from a small satellite galaxy. The main galaxy, spiral galaxy NGC 4651, is abo...