2017年05月21日:礁湖星云的中心-（In the Center of the Lagoon Nebula）

2017年05月21日:礁湖星云的中心-（In the Center of the Lagoon Nebula）--原图下载

Image Credit: Hubble, A. Caulet (ST-ECF,ESA),NASA
说明: 礁湖星云的中心正在进行剧烈壮观的造星活动。在影像的中心附近，至少可以找到两根长达半光年、由超强恒星风和高能星光所吹袭而成的漏斗形云气柱。而邻近、极端明亮的恒星Hershel 36，则照亮了整个区域。此外，还可见到遮掩红化其他炽热年轻恒星的厚重尘埃云墙。随着这些恒星的能量灌入冰冷的尘埃和云气，横跨在毗邻区域巨大温差所形成的剪向风，可能就是造就这些漏斗云柱的主因。上面这张涵盖了5光年天区的影像，是由哈伯太空望远镜在1995年所拍摄的多张照片组合而成。礁湖星云又名为M8，位在黄道上的人马座里，离我们约有5,000光年远。

原文：

Image Credit: Hubble, A. Caulet (ST-ECF,ESA),NASA
Explanation: The center of the Lagoon Nebula is a whirlwind of spectacular star formation.Visible on the lower left, at least two long funnel-shaped clouds, each roughly half a light-year long, have been formed by extreme stellar winds and intense energetic starlight. The tremendously bright nearby star, Hershel 36, lights the area. Vast walls of dust hide and redden other hot young stars. As energy from these stars pours into the cool dust and gas, large temperature differences in adjoining regions can be created generating shearing winds which may cause the funnels. This picture, spanning about 5 light years, was taken in 1995 by the orbiting Hubble Space Telescope. The Lagoon Nebula, also known as M8, lies about 5000 light years distant toward the constellation of Sagittarius.