猎户座：奔跑的人星云
(原标题: Orion: The Running Man Nebula)
2026-02-02
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这是猎户座的哪一部分？就在著名的猎户座星云的北部，是猎户座剑中一个风景如画的恒星形成区，它包含了许多复杂的尘埃——其中一些看起来是蓝色的，因为它反射了明亮的镶嵌恒星的光。这个区域的通俗名称是“跑步人星云”，因为从右边看，部分棕色尘埃看起来像是跑步的腿。这个反射星云的编号为Sharpless 279，它不仅是猎户座的一部分，也是猎户座分子云复合体的一部分。“奔跑的人”的明亮恒星发出的光，包括最靠近图像中心的猎户座42星发出的光，正在慢慢地破坏和重塑周围的尘埃，这些尘埃可能会在大约1000万年后完全消失。该星云直径约15光年，距离我们约1500光年。拼图星云：今日天文谜题
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What part of Orion is this? Just north of the famous Orion Nebula is a picturesque star forming region in Orion's Sword that contains a lot of intricate dust -- some of which appears blue because it reflects the light of bright embedded stars. The region's popular name is the Running Man Nebula because, looked at from the right, part of the brown dust appears to be running legs. Cataloged as Sharpless 279, the reflection nebula is not only part of the constellation of Orion, but part of the greater Orion molecular cloud complex. Light from the Running Man's bright stars, including 42 Orionis, the bright star closest to the featured image center, is slowly destroying and reshaping the surrounding dust, which will likely be completely gone in about 10 million years. The nebula spans about 15 light years and lies about 1,500 light years away. Jigsaw Nebula: Astronomy Puzzle of the Day
© Robert G. Lyons (Robservatory)