NGC 7380：巫师星云
(原标题: NGC 7380: The Wizard Nebula)
2022-11-14
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巫师星云中使用的是什么力量？引力强到足以形成恒星，恒星风和辐射强到足以产生和溶解气体塔。巫师星云距离我们只有8000光年远，它围绕着正在形成的疏散星团NGC 7380。从视觉上看，恒星、气体和尘埃的相互作用创造了一个形状，在一些人看来就像一个虚构的中世纪巫师。活跃的恒星形成区跨度约100光年，使其看起来比月球的角度范围还要大。巫师星云可以用一架小型望远镜指向埃塞国王星座（仙王座）。虽然星云可能只存在几百万年，但一些正在形成的恒星可能比我们的太阳还要长寿。
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What powers are being wielded in the Wizard Nebula? Gravitation strong enough to form stars, and stellar winds and radiations powerful enough to create and dissolve towers of gas. Located only 8,000 light years away, the Wizard nebula, featured here, surrounds developing open star cluster NGC 7380. Visually, the interplay of stars, gas, and dust has created a shape that appears to some like a fictional medieval sorcerer. The active star forming region spans 100 about light years, making it appear larger than the angular extent of the Moon. The Wizard Nebula can be located with a small telescope toward the constellation of the King of Aethiopia (Cepheus). Although the nebula may last only a few million years, some of the stars being formed may outlive our Sun.
© Ioan Popa