大麦哲伦星云星系
(原标题: The Large Magellanic Cloud Galaxy)
2024-10-02
浏览次数: 21
它是我们的家园银河系中最大的卫星星系。如果你住在南方，大麦哲伦星云（LMC）非常引人注目，它横跨夜空约10度，比朝向南海豚星座（多拉多）的满月大20倍。由于距离我们只有大约16万光年，我们可以看到LMC结构的许多细节，比如它的中心杆和单螺旋臂。大麦哲伦星云拥有众多的恒星托儿所，在那里新恒星正在诞生，这些恒星在这张特色图片中显示为粉红色。它是狼蛛星云的所在地，是整个本星系群中目前最活跃的恒星形成区域，本星系群是由大质量的仙女座星系和银河系主导的一小群附近星系。亨丽埃塔·斯旺·莱维特对LMC和小麦哲伦云（SMC）的研究发现了造父变星的周期-光度关系，这种关系被用来测量附近宇宙的距离。概览：色盲和天文图像
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It is the largest satellite galaxy of our home Milky Way Galaxy. If you live in the south, the Large Magellanic Cloud (LMC) is quite noticeable, spanning about 10 degrees across the night sky, which is 20 times larger than the full moon towards the southern constellation of the dolphinfish (Dorado). Being only about 160,000 light years away, many details of the LMC's structure can be seen, such as its central bar and its single spiral arm. The LMC harbors numerous stellar nurseries where new stars are being born, which appear in pink in the featured image. It is home to the Tarantula Nebula, the currently most active star forming region in the entire Local Group, a small collection of nearby galaxies dominated by the massive Andromeda and Milky Way galaxies. Studies of the LMC and the Small Magellanic Cloud (SMC) by Henrietta Swan Leavitt led to the discovery of the period-luminosity relationship of Cepheid variable stars that are used to measure distances across the nearby universe. Survey: Color Blindness and Astronomical Images
© Ireneusz Nowak; Text: Natalia Lewandowska (SUNY Oswego)