三叶星云的中心

2020年11月01日

In the Center of the Trifid Nebula
Image Credit: Subaru Telescope (NAOJ), Hubble Space Telescope, Martin Pugh; Processing: Robert Gendler

Explanation: What’s happening at the center of the Trifid Nebula? Three prominent dust lanes that give the Trifid its name all come together. Mountains of opaque dust appear near the bottom, while other dark filaments of dust are visible threaded throughout the nebula. A single massive star visible near the center causes much of the Trifid’s glow. The Trifid, cataloged as M20, is only about 300,000 years old, making it among the youngest emission nebulas known. The star forming nebula lies about 9,000 light years away toward the constellation of the Archer (Sagittarius). The region pictured here spans about 10 light years. The featured image is a composite with luminance taken from an image by the 8.2-m ground-based Subaru Telescope, detail provided by the 2.4-m orbiting Hubble Space Telescope, color data provided by Martin Pugh and image assembly and processing provided by Robert Gendler.

Portal Universe: Random APOD Generator

Tomorrow’s picture: half prominent sun

三叶星云的中心
影像提供: Subaru Telescope (NAOJ), Hubble Space Telescope, Martin Pugh; 影像处理: Robert Gendler

说明: 三叶星云的中心怎么啦？发生了什么事 位在北天 人马座里的三叶星云，是个著名的恒星形成区，其内明亮云气和尘埃带纠结成团。在星云中央，三道巨大的尘埃暗带会聚在一起，让这个星云博得三叶星云的令名。此外，影像右方有峰峦状的不透光尘埃云，以及散布在星云各处的丝状尘埃。而影像中央的那颗大质量恒星，即是供应大部分三裂星云散发辉光的能源。大约是30万年稚龄的三裂星云，又名为M20，是已知最年轻的发射星云之一。位在人马 座方向三叶星云距离我们大约有9,000光年远，上图所呈现的区域大约宽10光年。上面这幅主题影像，整合了地面8.2米昴宿望远镜影像的亮度资讯、2.4米哈伯太空望远镜所提供的细部结构、以及Martin Pugh所提供的色彩资料，最后再由Robert Gendler进行影像合成和处理。

宇宙入口: 随机天文·每日一图生成器

明日的图片: half prominent sun