2021年06月29日

图为哈勃太空望远镜拍摄的猎户座星云内部。有关更多详细信息,请参阅说明。

Orion Nebula: The Hubble View
Image Credit:
NASA, ESA, Hubble Legacy Archive; Processing: Francisco Javier Pobes Serrano

Explanation: Few cosmic vistas excite the imagination like the Orion Nebula. Also known as M42, the nebula’s glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud only 1,500 light-years away. The Orion Nebula offers one of the best opportunities to study how stars are born partly because it is the nearest large star-forming region, but also because the nebula’s energetic stars have blown away obscuring gas and dust clouds that would otherwise block our view – providing an intimate look at a range of ongoing stages of starbirth and evolution. The featured image of the Orion Nebula is among the sharpest ever, constructed using data from the Hubble Space Telescope. The entire Orion Nebula spans about 40 light years and is located in the same spiral arm of our Galaxy as the Sun.

Tomorrow’s picture: first stars


哈勃影像:猎户座星云
影像提供:
NASA, ESA, Hubble Legacy Archive; 影像处理: Francisco Javier Pobes Serrano

说明: 很少有天体,能像猎户座星云这么能激发人们的想像力。这团又名为M42的星,位在1,500光年远、极为庞星际分子云边缘,而在其内,丝状的黝黑尘埃辉光气体拱着炽热的年轻恒星。猎户座星云是天文学研究恒星如何诞生的最佳标的之一,除了它是离我们最近的大型恒星形成区之外,更因为通常会阻挡我们视线的不透光云气和尘埃云,已被活跃恒星的恒星风给吹跑了,让处在不同诞生及演化阶段的恒星得以被仔细检视。这幅建构自哈勃太空望远镜数据的主题影像,是猎户座星云到目前为止最清晰的影像。猎户座星云宽约40光年,与太阳在同一条银河系旋臂上。

明日的图片: first stars

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