NASA 05月02日 12:13
Young Star Cluster NGC 346
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每日一天文图展示了宇宙的奇观。2025年5月2日的图片聚焦于NGC 346,这是位于小麦哲伦星云中最大的年轻星团。该星团距离我们约21万光年,内部包含大量年轻恒星。这些恒星的强烈辐射和恒星风塑造了周围的尘埃分子云,从而引发了新一轮的恒星形成。詹姆斯·韦伯空间望远镜(JWST)的红外图像捕捉到了这一壮观景象,展示了电离氢、分子氢和尘埃的细节,呈现出粉色和橙色的色调。该图像跨越了240光年的范围,揭示了星团内婴儿恒星的存在。

✨NGC 346是小麦哲伦星云中最大的年轻星团,距离我们约21万光年。

🌟NGC 346中的大质量恒星寿命短暂但能量巨大,其恒星风和辐射塑造了周围的尘埃分子云。

💫该星团的恒星形成区域包含大量尚未开始核聚变的婴儿恒星,年龄仅为300万至500万年。

☄️詹姆斯·韦伯空间望远镜(JWST)的NIRcam捕捉到的红外图像,详细展示了电离氢、分子氢和尘埃,呈现粉色和橙色。

🌌JWST的图像跨越了240光年,揭示了年轻星团NGC 346的壮丽景象。

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2025 May 2

Young Star Cluster NGC 346
Science -NASA,ESA,CSA,Olivia C. Jones (UK ATC), Guido De Marchi (ESTEC), Margaret Meixner (USRA)
Processing - Alyssa Pagan (STScI), Nolan Habel (USRA),Laura Lenkić (USRA), Laurie E. U. Chu (NASA Ames)

Explanation: The most massive young star cluster in theSmall Magellanic Cloud is NGC 346,embedded in our small satellite galaxy's largest star forming regionsome 210,000 light-years distant.Of course themassive stars of NGC 346 are short lived, but veryenergetic. Their winds and radiationsculpt the edgesof the region's dusty molecular cloud triggering star-formation within.The star forming region also appears tocontain a large population of infant stars.A mere 3 to 5 million years old and not yetburning hydrogenin their cores, theinfant starsare strewn about the embedded star cluster.This spectacular infrared viewof NGC 346 isfrom the James Webb Space Telescope'sNIRcam.Emission from atomic hydrogen ionized by the massive stars' energeticradiation as well as molecular hydrogen and dustin the star-forming molecular cloud is detailed in pink and orange hues.Webb's sharp imageof the young star-forming regionspans 240 light-years at the distance of the Small Magellanic Cloud.

Tomorrow's picture: Titan's Shangra-La


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