气体和尘埃中的猎户座带
(原标题: Orion's Belt Region in Gas and Dust)
2022-01-11
浏览次数: 32
你以前可能见过猎户座的腰带，但不是这样的。这张图片上的三颗明亮的恒星，从左到右，分别是明宿星、仙宿星和仙宿星，它们是猎户座标志性的腰带星。画面中其余的恒星已经被数字删除，以突出周围的发光气体云和黑暗尘埃。其中一些云的形状很有趣，包括马头星云和火焰星云，它们都位于图右下方的参宿二附近。这张深空图像是上个月在美国德克萨斯州马拉松市的马拉松天空公园和天文台拍摄的，跨度约为5度，曝光时间约为20小时，经过处理后，我们可以更近距离地看到气体和尘埃。著名的猎户座星云位于这片彩色区域的右上方。整个区域距离我们只有1500光年远，因此它是已知距离最近、研究得最好的恒星形成摇篮之一。今晚：APOD编辑将呈现2021年最佳太空图像
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You may have seen Orion's belt before -- but not like this. The three bright stars across this image are, from left to right, Mintaka, Alnilam, and Alnitak: the iconic belt stars of Orion. The rest of the stars in the frame have been digitally removed to highlight the surrounding clouds of glowing gas and dark dust. Some of these clouds have intriguing shapes, including the Horsehead and Flame Nebulas, both near Alnitak on the lower right. This deep image, taken last month from the Marathon Skypark and Observatory in Marathon, Texas, USA, spans about 5 degrees, required about 20 hours of exposure, and was processed to reveal the gas and dust that we would really see if we were much closer. The famous Orion Nebula is off to the upper right of this colorful field. The entire region lies only about 1,500 light-years distant and so is one of the closest and best studied star formation nurseries known. Tonight: APOD Editor to Present the Best Space Images of 2021
© Matt Harbison (Space4Everybody), Marathon Remote Imaging Observatory