梅西耶99
(原标题: Messier 99)
2021-06-24
浏览次数: 29
螺旋星系梅西耶99在真正的宇宙尺度上看起来雄伟壮观。这张最近处理过的星系全景图横跨M99超过7万光年。这幅清晰的图像是哈勃太空望远镜拍摄的紫外线、可见光和红外图像数据的组合。这个面朝上的旋涡星系距离美丽的后发座大约5000万光年，是附近室女座星系团的一员。它也被编号为NGC 4254，与室女座星团的另一个成员的近距离接触可能影响了它明确的蓝色旋臂的形状。
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Grand design spiral galaxy Messier 99 looks majestic on a truly cosmic scale. This recently processed full galaxy portrait stretches over 70,000 light-years across M99. The sharp view is a combination of ultraviolet, visible, and infrared image data from the Hubble Space Telescope. About 50 million light-years distant toward the well-groomed constellation Coma Bernices, the face-on spiral is a member of the nearby Virgo Galaxy Cluster. Also cataloged as NGC 4254, a close encounter with another Virgo cluster member has likely influenced the shape of its well-defined, blue spiral arms.