梅西耶 6
Messier 6
來源：Xinran Li｜發表日期：2025-07-19
Messier 6 是查爾斯-梅西耶（Charles Messier）著名的非彗星星表中的第六個天體，它是一個星系或疏散星團。M 6 由大約 100 顆恆星組成，都是大約 1 億年前的恆星，位於大約 1600 光年外的天蠍座銀河系中央。這個漂亮星團的輪廓也被編入 NGC 6405 星表，它的俗稱是 "蝴蝶星團"。在該區域氫氣瀰漫的紅色輻射包圍下，星團中的大部分恆星都是炙熱的，因此也是藍色的，它們位於這張色彩斑斕的宇宙快照的中心附近。但最亮的星團成員是一顆冷K 型巨星。它被命名為 BM Scorpii，閃耀著黃橙色的光芒，就在蝴蝶觸角的末端附近。這個望遠鏡視場橫跨天空近兩個滿月。這距離Messier 6 估計有 25 光年。
原文：The sixth object in Charles Messier's famous catalog of things which are not comets, Messier 6 is a galactic or open star cluster. A gathering of 100 stars or so, all around 100 million years young, M6 lies some 1,600 light-years away toward the central Milky Way in the constellation Scorpius. Also cataloged as NGC 6405, the pretty star cluster's outline suggests its popular moniker, the Butterfly Cluster. Surrounded by diffuse reddish emission from the region's hydrogen gas the cluster's mostly hot and therefore blue stars are near the center of this colorful cosmic snapshot. But the brightest cluster member is a cool K-type giant star. Designated BM Scorpii it shines with a yellow-orange hue, seen near the end of one of the butterfly's antennae. This telescopic field of view spans nearly 2 Full Moons on the sky. That's 25 light-years at the estimated distance of Messier 6.
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