Astronomy Picture of the Day——蝌蚪星云中的恒星形成区
Star Formation in the Tadpole Nebula
Image Credit: WISE, IRSA, NASA; Processing & Copyright: Francesco Antonucci
Explanation: What's all of the commotion in the Tadpole Nebula? Star formation. Dusty emission in the Tadpole Nebula, IC 410, lies about 12,000 light-years away in the northern constellation of the Charioteer (Auriga). The cloud of glowing gas is over 100 light-years across, sculpted by stellar winds and radiation from embedded open star cluster NGC 1893. Formed in the interstellar cloud a mere 4 million years ago, bright newly formed cluster stars are seen all around the star-forming nebula. Notable near the image center are two relatively dense streamers of material trailing away from the nebula's central regions. Potentially sites of ongoing star formation in IC 410, these cosmic tadpole shapes are about 10 light-years long. The featured image was taken in infrared light by NASA's Wide Field Infrared Survey Explorer (WISE) satellite.
蝌蚪星云中的恒星生成区
蝌蚪星云发生了什么? 答案是恒星正在形成。蝌蚪星云亦被称为IC 410，位于北天的御夫座，距离地球约12,000光年，是发射星云。发光气体云的跨度超过100光年，是被内部疏散星团NGC 1893发出辐射塑造成的。诞生于400万年前的星际云中，这些明亮的新形成的恒星遍布星云中。在图片中央有很明显的两股相对稠密的物质流从星云的中心突出。这些宇宙蝌蚪的长度有10光年，很可能是IC 410中正在产生恒星的区域。这幅照片是由NASA的广域红外巡天探测者 (WISE)卫星在红外波段拍摄的。
高清原图地址：
https://apod.nasa.gov/apod/image/2001/ic410_WISEantonucci_1824.jpg
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