从太空看星系
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维利亚里卡火山与星空
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三个星系与一颗彗星
2023年8月27日 Three Galaxies and a Comet Credit & Copyright: Miloslav Druckmuller (Brno University of Technology) Explanation: Diffuse starlight and dark nebulae along the southern Milky Way arc over the horizon and sprawl diagonally through this gorgeous nightscape. The breath-taking mosaic spans a wide 100 degrees, with the rugged terrain of the Patagonia, Argentina region in the foreground. Along with the insider’s view of our own galaxy, the image features our outside perspective on two irregular satellite galaxies – the Large and Small Magellanic Clouds. The scene also captures the broad tail and bright coma of Comet McNaught, the Great Comet of 2007. Tomorrow’s picture: game stars 三个星系与一颗彗星 影像提供与版权: Miloslav Druckmuller (Brno University of Technology) 说明: 在这幅壮丽的影像里，沿着斜贯过夜空的南天银河分布之弥漫星光和暗星云，悬在地平线上方。这幅迷人拼接影像的张角宽达100度，前景则是位于阿根廷巴塔哥尼亚的崎岖原野。影像呈现我们身为银河系圈内人所见的光景之外，也记录了我们作为圈外人所看到的大和小麦哲伦星系，这二个形状不规则的银河伴星系之身影。此外，这张影像也捕捉到曳着宽广彗尾和明亮彗发的2007年大彗星──麦克诺彗星。 明日的图片: game stars
智利上空的大与小麦哲伦星系
2023年2月11日 Magellanic Clouds over Chile Image Credit & Copyright: Felipe Mac Auliffe López Explanation: The two prominent clouds in this Chilean Atacama Desert skyscape captured on January 21 actually lie beyond our Milky Way galaxy. Known as the Large and the Small Magellanic Clouds they are so named for the 16th century Portuguese explorer Ferdinand Magellan, leader of the first circumnavigation of planet Earth. Famous jewels of southern hemisphere skies, they are the brightest satellite galaxies of the Milky Way. The larger cloud is some 160,000 light-years, and the smaller 210,000 light-years distant. While both are irregular dwarf galaxies in their own right, they exhibit central barred structures in the deep wide-angle view. Wide and deep exposures also reveal faint dusty galactic cirrus nebulae and…
小麦哲伦星系
2021年01月05日 The Small Cloud of Magellan Image Credit & Copyright: José Mtanous Explanation: What is the Small Magellanic Cloud? It has turned out to be a galaxy. People who have wondered about this little fuzzy patch in the southern sky included Portuguese navigator Ferdinand Magellan and his crew, who had plenty of time to study the unfamiliar night sky of the south during the first circumnavigation of planet Earth in the early 1500s. As a result, two celestial wonders easily visible for southern hemisphere skygazers are now known in Western culture as the Clouds of Magellan. Within the past 100 years, research has shown that these cosmic clouds are dwarf irregular galaxies, satellites of our larger spiral Milky Way Galaxy. The Small Magellanic Cloud actually…
NGC 346：小麦哲伦星系内的恒星形成区
2020年12月01日 NGC 346: Star Forming Cluster in the SMC Image Credit & License: NASA, ESA, Hubble; Processing: Judy Schmidt Explanation: Are stars still forming in the Milky Way’s satellite galaxies? Found among the Small Magellanic Cloud’s (SMC’s) clusters and nebulas, NGC 346 is a star forming region about 200 light-years across, pictured here in the center of a Hubble Space Telescope image. A satellite galaxy of the Milky Way, the Small Magellanic Cloud (SMC) is a wonder of the southern sky, a mere 210,000 light-years distant in the constellation of the Toucan (Tucana). Exploring NGC 346, astronomers have identified a population of embryonic stars strung along the dark, intersecting dust lanes visible here on the right. Still collapsing within their natal clouds, the stellar infants’…