帕沃巨型星系
Giant Galaxies in Pavo

來源:Adam Block|發表日期:2025-08-19
NGC 6872 (左下)直徑超過 50 萬光年,是一個真正巨大的棒旋星系。NGC 6872 的大小至少是我們銀河系的 5 倍,是已知最大的螺旋星系。這個巨型星系的旋臂伸展開來,就像一隻巨鳥的翅膀。因此,它的俗稱是禿鷹星系。NGC 6872 的旋臂上佈滿了巨大的、年輕的、藍色的恆星簇和恆星形成區,這些延伸和扭曲的旋臂是由於NGC 6872 過去與附近較小的星系IC 4970 的引力相互作用造成的。南帕沃星系群的其他成員散佈在這個壯麗的星系群畫像中,其中最主要的巨型橢圓星系 NGC 6876 位於高聳的禿鷹星系上方和右側。
原文: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.
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