M31: 仙女座星系
The featured image shows a spiral galaxy and a smaller oval galaxy in a dark starfield. Please see the explanation for more detailed information.
特色图片展示了黑暗星场中的一个螺旋星系和一个较小的椭圆星系。有关更多详细信息，请参阅说明。
标签： M31
阿尔卑斯山上空的仙女座星系
2023年11月13日 Andromeda over the Alps Image Credit & Copyright: Dzmitry Kananovich Explanation: Have you ever seen the Andromeda galaxy? Although M31 appears as a faint and fuzzy blob to the unaided eye, the light you see will be over two million years old, making it likely the oldest light you ever will see directly. The featured image captured Andromeda...
仙女座星系过去和未来的恒星
2023年10月6日 The Once and Future Stars of Andromeda Image Credit: NASA, NSF, NOAJ, Hubble, Subaru, Mayall, DSS, Spitzer; Processing & Copyright: Robert Gendler & Russell Croman Explanation: This picture of Andromeda shows not only where stars are now, but where stars will be. The big, beautiful Andromeda Galaxy, M31, is a spiral galaxy a mere 2.5 mil...
流星与星系
2023年8月23日 The Meteor and the Galaxy Credit & Copyright: Jose Pedrero Explanation: It came from outer space. It — in this case a sand-sized bit of a comet nucleus — was likely ejected many years ago from Sun-orbiting Comet Swift-Tuttle, but then continued to orbit the Sun alone. When the Earth crossed through this orbit, the piece of comet d...
NGC 206与仙女星系的恒星云
2023年4月12日 NGC 206 and the Star Clouds of Andromeda Image Credit & Copyright: Howard Trottier Explanation: The large stellar association cataloged as NGC 206 is nestled within the dusty arms of the neighboring Andromeda galaxy along with the galaxy’s pinkish star-forming regions. Also known as M31, the spiral galaxy is a mere 2.5 million light-yea...
M31: 仙女星系
2023年3月22日 M31: The Andromeda Galaxy Image Credit & Copyright: Abdullah Al-Harbi Explanation: How far can you see? The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy, over two million light-years away. Without a telescope, even this immense spiral galaxy appears as an unremarkable, faint, nebulous cloud in the c...
仙女座星系方向的未预期云气
2023年1月17日 Unexpected Clouds Toward the Andromeda Galaxy Image Credit & Copyright: Yann Sainty & Marcel Drechsler Explanation: Why are there oxygen-emitting arcs near the direction of the Andromeda galaxy? No one is sure. The gas arcs, shown in blue, were discovered and first confirmed by amateur astronomers just last year. The two main origin hypo...
M33: 三角大星系
2022年11月3日 M33: The Triangulum Galaxy Image Credit & Copyright: Processing – Robert Gendler Data – Hubble Legacy Archive, KPNO, NOIRLab, NSF, Aura, Amateur Sources Explanation: The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum...
仙女大星系周围的云气
2022年10月24日 Clouds Around Galaxy Andromeda Image Credit & Copyright: Andrew Fryhover Explanation: What are those red clouds surrounding the Andromeda galaxy? This galaxy, M31, is often imaged by planet Earth-based astronomers. As the nearest large spiral galaxy, it is a familiar sight with dark dust lanes, bright yellowish core, and spiral arms traced b...
南天的仙女座星系
2022年10月21日 Andromeda in Southern Skies Image Credit & Copyright: Ian Griffin (Otago Museum) Explanation: Looking north from southern New Zealand, the Andromeda Galaxy never gets more than about five degrees above the horizon. As spring comes to the southern hemisphere, in late September Andromeda is highest in the sky around midnight though. In a singl...