三对星系
(原标题: Three Galaxy Pairs)
2026-08-10
浏览次数: 1511
这些星系对中的每一对都是不同的。顶部的两个星系可能没有相互作用，至少目前没有。然而，上面有蓝色条纹的星系NGC 4650A是一个极环星系，可能是过去星系碰撞的结果。图片中间的两个星系看起来像是在相互作用，但它们的相对速度使这种情况不太可能发生。在这两个星系中，较大的星系NGC 4650是一个螺旋星系，其中心有一个明亮的恒星条。底部的两个星系正在积极地相互作用。可能在10亿年左右的时间里，NGC 4622A和NGC 4622B将合并成一个星系。所有这些星系都可能是较大的半人马座星系团的成员。探索宇宙：随机APOD生成器
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ch of these pairs of galaxies is different. The two galaxies at the top are likely not interacting, at least presently. However, the top galaxy with the blue stripe, NGC 4650A, is a polar ring galaxy and may be the result of a past galaxy collision. The two galaxies in the middle of the featured image appear like they could be interacting gravitationally -- but their relative speeds make this unlikely. Of these two, the larger galaxy, NGC 4650, is a spiral galaxy with a bright bar of stars across its center. The two galaxies at the bottom are actively interacting. Possibly in a billion years or so, NGC 4622A and NGC 4622B will merge and become one single galaxy. All of these galaxies are likely members of the larger Centaurus Galaxy Cluster. Explore the Universe: Random APOD Generator
© Rafael Sampaio