M42: 猎户座大星云

2024年11月4日

M42: The Great Nebula in Orion
Credit & Copyright: Fényes Lóránd

Explanation: The Great Nebula in Orion, an immense, nearby starbirth region, is probably the most famous of all astronomical nebulas. Here, glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud only 1500 light-years away. In the featured deep image in assigned colors highlighted by emission in oxygen and hydrogen, wisps and sheets of dust and gas are particularly evident. The Great Nebula in Orion can be found with the unaided eye near the easily identifiable belt of three stars in the popular constellation Orion. In addition to housing a bright open cluster of stars known as the Trapezium, the Orion Nebula contains many stellar nurseries. These nurseries contain much hydrogen gas, hot young stars, proplyds, and stellar jets spewing material at high speeds. Also known as M42, the Orion Nebula spans about 40 light years and is located in the same spiral arm of our Galaxy as the Sun.

Tomorrow’s picture: galaxy watchers

M42: 猎户座大星云
影像提供与版权: Fényes Lóránd

说明: 猎户座大星云是个庞大邻近的恒星诞生区，而它或许是所有天文星云中声名最著者。在此星云里，环拱在炽热年轻恒星周围的辉光气体，全都座落在一团距离我们只有1,500光年远、极为广袤的星际分子云之边缘。在这幅用配色突显氧和氢辐射的深空主题影像里，丝状和层状的尘埃及云气格外的醒目。猎户座大星云位于轻易可辨的北天著名猎户腰带三星附近，是个肉眼可见的天体。在猎户座大星云里，除了有名为四边形星团的明亮疏散星团之外，还有许多恒星形成区。而这些恒星形成区，则拥有大量的氢气、炽热年轻恒星、原行星盘以及高速喷出物质的恒星喷流。亦名为M42的猎户座大星云，大小约为40光年，和太阳位在同一条银河系螺旋臂上。

明日的图片: galaxy watchers