哈勃拍摄的锥状星云
(原标题: The Cone Nebula from Hubble)
2024-02-04
浏览次数: 17
恒星正在被称为锥状星云的巨大尘埃柱中形成。锥状、柱状和雄伟的流动形状在恒星托儿所中比比皆是，在那里，由气体和尘埃组成的星云受到新生恒星的高能风的冲击。锥状星云，一个著名的例子，位于明亮的星系恒星形成区NGC 2264内。在这张由绕地球轨道运行的哈勃太空望远镜的几次观测结果合成的特写照片中，以前所未有的细节捕捉到了圆锥体。而锥状星云，大约2500光年远，在Monoceros，大约7光年长，在这张照片周围的锥状钝头的区域只有2.5光年宽。在我们银河系的颈部，距离太阳到最近的半人马座阿尔法星系统的距离刚刚超过一半。1997年由哈勃红外相机拍摄到的大质量恒星NGC 2264 IRS很可能是塑造锥状星云的风的来源，位于图像的顶部。锥状星云的红色面纱是由尘埃和发光的氢气产生的。
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Stars are forming in the gigantic dust pillar called the Cone Nebula. Cones, pillars, and majestic flowing shapes abound in stellar nurseries where natal clouds of gas and dust are buffeted by energetic winds from newborn stars. The Cone Nebula, a well-known example, lies within the bright galactic star-forming region NGC 2264. The Cone was captured in unprecedented detail in this close-up composite of several observations from the Earth-orbiting Hubble Space Telescope. While the Cone Nebula, about 2,500 light-years away in Monoceros, is around 7 light-years long, the region pictured here surrounding the cone's blunted head is a mere 2.5 light-years across. In our neck of the galaxy that distance is just over half way from our Sun to its nearest stellar neighbors in the Alpha Centauri star system. The massive star NGC 2264 IRS, seen by Hubble's infrared camera in 1997, is the likely source of the wind sculpting the Cone Nebula and lies off the top of the image. The Cone Nebula's reddish veil is produced by dust and glowing hydrogen gas.