2026年2月2日
Orion: The Running Man Nebula
Image Credit & Copyright: Robert G. Lyons (Robservatory)
Explanation: 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
Tomorrow’s picture: spider webb
猎户座: 奔跑者星云
影像提供与版权: Robert G. Lyons (Robservatory)
说明: 这是猎户座的哪个部分？在著名的猎户座星云正北方，猎户座之剑中有一个风景如画的恒星形成区，其中包含大量结构复杂的尘埃——其中一些尘埃呈现蓝色，是因为它们反射了其中明亮嵌入恒星的光芒。这片区域的俗称是奔跑者星云，因为从右侧观察，部分棕色尘埃看起来像是奔跑的双腿。这片反射星云的星表编号为Sharpless 279，它不仅是猎户 座的一部分，也是更大的猎户座分子云复合体的一部分。奔跑者星云中明亮的恒星，包括最接近特色图像中心的明亮恒星——猎户座42星（42 Orionis），它们的光芒正在缓慢地摧毁和重塑周围的尘埃，这些尘埃很可能在大约1000万年后完全消失。这个星云横跨大约15光年，距离地球约1500光年。
星云拼图: 每日天文谜题
明日的图片: spider webb
