帕沃的巨型星系
(原标题: Giant Galaxies in Pavo)
2025-08-19
浏览次数: 1492
ngc6872（左下）直径超过50万光年，是一个真正巨大的棒旋星系。NGC 6872的大小至少是我们银河系的5倍，是已知最大的螺旋星系。在距离南方孔雀星座（Pavo）约2亿光年的地方，这个巨大星系伸展的螺旋臂看起来像一只巨大的鸟的翅膀。所以它的绰号是秃鹰星系。由于NGC 6872过去与附近较小的星系IC 4970的引力相互作用，它的延伸和扭曲的螺旋臂被巨大的年轻的蓝色星团和恒星形成区域所包围，在这个巨大的螺旋星系的核心下方可见。南Pavo星系群的其他成员分散在这幅壮丽的星系群肖像中，占主导地位的巨大椭圆星系NGC 6876位于高耸的秃鹰星系的上方和右侧。
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Over 500,000 light years across, NGC 6872 (bottom left) is a truly enormous barred spiral galaxy. At least 5 times the size of our own large Milky Way, NGC 6872 is the largest known spiral galaxy. About 200 million light-years distant toward the southern constellation Pavo, the Peacock, the appearance of this giant galaxy's stretched out spiral arms suggest the wings of a giant bird. So its popular moniker is the Condor galaxy. Lined with massive young, bluish star clusters and star-forming regions, the extended and distorted spiral arms are due to NGC 6872's past gravitational interactions with the nearby smaller galaxy IC 4970, visible here below the giant spiral galaxy's core. Other members of the southern Pavo galaxy group are scattered through this magnificent galaxy group portrait, with the dominant giant elliptical galaxy, NGC 6876, above and right of the soaring Condor galaxy.
© Adam Block