Copyright:Herbert Walter
原文:
This colorful skyscape spans about three full moons (1.5 degrees) across nebula rich starfields along the plane of our Milky Way Galaxy in 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) 155 lies at the upper left, also known as the Cave Nebula. About 10 light-years across the cosmic cave’s bright rims of gas are ionized by ultraviolet light from hot young stars. Dusty blue reflection nebulae also abound on the interstellar canvas cut by dense obscuring clouds of dust. The long core of the Lynds Dark Nebula (LDN) 1210 anchors the scene at lower right. Astronomical explorations have revealed other dramatic signs of star formation, including the bright red fleck of Herbig-Haro (HH) 168. Directly below the bright Cave Nebula, the Herbig-Haro object emission is generated by energetic jets from a newborn star.
中文翻譯:
這片色彩斑斕的天空景觀在我們的銀河系上，跨越了大約三個滿月（1.5度）的範圍，展現了豐富的星雲星場，位於北方的王座星座(Cepheus)。在這個距離約2,400光年的巨大分子雲邊緣，明亮的紅色發射區域Sharpless (Sh) 155位於左上角，也被稱為洞穴星雲(Cave Nebula)。這個宇宙洞穴的亮邊緣大約有10光年寬，這些氣體的發光是由熱年輕恆星的紫外線光所激發的。粉藍色的反射星雲在這片星際畫布上隨處可見，並被密集的塵埃雲遮蔽。位於場景右下角的Lynds Dark Nebula (LDN) 1210的長核心穩固了整個畫面。天文探索揭示了其他戲劇性的星形成跡象，包括明亮的紅色斑點Herbig-Haro (HH) 168。在明亮的洞穴星雲下方，Herbig-Haro物體的發射是由一顆新生恆星的能量噴流產生的。
#CaveNebula #Cepheus #Sharpless155 #HH168 #StarFormation #MilkyWay #Nebula #Astrophotography #Astronomy #SpaceExploration #CosmicWonder #LyndsDarkNebula
來源:NASA每日圖片
