马头星云和与猎户座的其他星云

2021年05月09日

Horsehead and Orion Nebulas
Image Credit & Copyright: Roberto Colombari & Federico Pelliccia

Explanation: The dark Horsehead Nebula and the glowing Orion Nebula are contrasting cosmic vistas. Adrift 1,500 light-years away in one of the night sky’s most recognizable constellations, they appear in opposite corners of the above stunning mosaic. The familiar Horsehead nebula appears as a dark cloud, a small silhouette notched against the long red glow at the lower left. Alnitak is the easternmost star in Orion’s belt and is seen as the brightest star to the left of the Horsehead. Below Alnitak is the Flame Nebula, with clouds of bright emission and dramatic dark dust lanes. The magnificent emission region, the Orion Nebula (aka M42), lies at the upper right. Immediately to its left is a prominent reflection nebula sometimes called the Running Man. Pervasive tendrils of glowing hydrogen gas are easily traced throughout the region.

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马头星云和与猎户座的其他星云
影像提供与版权: Roberto Colombari & Federico Pelliccia

说明: 黝黑的马头星云和明亮的猎户大星云，是宇宙中对比很鲜明的景观。漂流在1,500光年之外，位在夜空最容易辨认星座里的这对星云，分别位在这幅精采组合影像的对角。熟稔的马头星云是暗星云，为嵌在左下角条状辉光云气上的小剪影。马头星云左方的最明亮的恒星，则是猎户腰带最东边的参宿一。参宿一下方的火焰星云，是由辉光云气和吸睛的尘埃带交织而成。宏伟的猎户大星云 (M42)位在影像的右上角，而紧靠在它左侧的醒目蓝色反射星云，有慢跑人星云的称号。此外，在此区域里，到处散布着细丝状的明亮氢气。

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明日的图片: star clusters near and far