光明，黑暗和尘土
(原标题: The Light, the Dark, and the Dusty)
2024-01-10
浏览次数: 20
这张彩色的天空景观横跨了大约三个满月，沿着我们银河系的平面穿过星云丰富的星场，朝向北方的仙王座。在距离该区域大约2400光年远的巨大分子云的边缘附近，明亮的红色发射区Sharpless (Sh)2-155位于画面的中心，也被称为洞穴星云。大约10光年远的宇宙洞穴明亮的气壁被周围炙热的年轻恒星发出的紫外线电离。布满灰尘的蓝色反射星云，如左边的vdB 155，以及密集的模糊尘埃云也在星际画布上大量存在。天文探测发现了其他恒星形成的戏剧性迹象，包括赫比格-哈罗（HH） 168明亮的红色斑点。在画面的左上方，赫比格-哈罗天体的辐射是由一颗新生恒星的高能射流产生的。
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This colorful skyscape spans about three full moons across nebula rich starfields along the plane of our Milky Way Galaxy toward the royal northern constellation Cepheus. Near the edge of the region's massive molecular cloud some 2,400 light-years away, bright reddish emission region Sharpless (Sh)2-155 is at the center of the frame, also known as the Cave Nebula. About 10 light-years across the cosmic cave's bright walls of gas are ionized by ultraviolet light from the hot young stars around it. Dusty bluish reflection nebulae, like vdB 155 at the left, and dense obscuring clouds of dust also abound on the interstellar canvas. Astronomical explorations have revealed other dramatic signs of star formation, including the bright reddish fleck of Herbig-Haro (HH) 168. At the upper left in the frame, the Herbig-Haro object emission is generated by energetic jets from a newborn star.
© Gábor Galambos