M42：猎户座的大星云
(原标题: M42: The Great Nebula in Orion)
2024-11-04
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猎户座的大星云，一个巨大的，附近的恒星诞生区，可能是所有天文学星云中最著名的。在这里，炽热的气体围绕着1500光年外巨大的星际分子云边缘的炽热年轻恒星。在这张由氧气和氢气发射的指定颜色的深图像中，尘埃和气体的缕缕和片状特别明显。猎户座大星云可以用肉眼在猎户座的三颗恒星带附近找到。猎户座星云除了拥有一个明亮的四边形疏散星团外，还包含许多恒星托儿所。这些托儿所包含大量的氢气、炙热的年轻恒星、原质物质和高速喷射物质的恒星喷流。猎户座星云也被称为M42，直径约40光年，与太阳位于银河系的同一螺旋臂上。
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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.
© Fényes Lóránd