保护地球，探索宇宙，发现文明
2020年10月15日 Galaxies in Pegasus Image Credit & Copyright: Robert Eder Explanation: This sharp telescopic view reveals galaxies scattered beyond the stars of the Milky Way, at the northern boundary of the high-flying constellation Pegasus. Prominent at the upper right is NGC 7331. A mere 50 million light-years away, the large spiral is one of the brighte...
2020 February 7 NGC 7331 Close Up Image Credit & License: ESA/Hubble & NASA/D. Milisavljevic (Purdue University) Explanation: Big, beautiful spiral galaxy NGC 7331 is often touted as an analog to our own Milky Way. About 50 million light-years distant in the northern constellation Pegasus, NGC 7331 was recognized early on as a spiral nebula and is ac...