棒旋星系ngc6217
(原标题: Barred Spiral Galaxy NGC 6217)
2022-02-21
浏览次数: 25
许多螺旋星系的中心都有横条。甚至我们的银河系也被认为有一个适度的中央酒吧。在这张由哈勃太空望远镜上的高级巡天相机于2009年拍摄的照片中，突出的棒状螺旋星系NGC 6217被捕捉到了壮观的细节。可见的是黑暗的丝状尘埃带，明亮的蓝色恒星的年轻星团，发光的氢气的红色发射星云，横跨中心的长条状恒星，以及一个明亮的活动核，可能包含一个超大质量黑洞。光从NGC 6217到达我们大约需要6000万年，它横跨约3万光年，可以在小熊星座（小熊座）方向找到。世界语言的APOD：阿拉伯语、保加利亚语、加泰罗尼亚语、中文（北京）、中文（台湾）、克罗地亚语、捷克语、荷兰语、法语、法语（加拿大）、德语、希伯来语、印度尼西亚语、日语、韩语、黑山语、波兰语、俄语、塞尔维亚语、斯洛文尼亚语、西班牙语、台湾语、土耳其语、土耳其语和乌克兰语
查看原文解释
Many spiral galaxies have bars across their centers. Even our own Milky Way Galaxy is thought to have a modest central bar. Prominently barred spiral galaxy NGC 6217, featured here, was captured in spectacular detail in this image taken by the Advanced Camera for Surveys on the orbiting Hubble Space Telescope in 2009. Visible are dark filamentary dust lanes, young clusters of bright blue stars, red emission nebulas of glowing hydrogen gas, a long bar of stars across the center, and a bright active nucleus that likely houses a supermassive black hole. Light takes about 60 million years to reach us from NGC 6217, which spans about 30,000 light years across and can be found toward the constellation of the Little Bear (Ursa Minor). APOD in world languages: Arabic, Bulgarian, Catalan, Chinese (Beijing), Chinese (Taiwan), Croatian, Czech, Dutch, French, French (Canada), German, Hebrew, Indonesian, Japanese, Korean, Montenegrin, Polish, Russian, Serbian, Slovenian, Spanish, Taiwanese, Turkish, Turkish, and Ukrainian