LDN 1622 ：獵戶座暗星雲
LDN 1622: Dark Nebula in Orion
來源：Chris Fellows｜發表日期：2026-01-22
一幅引人入勝的暗星雲剪影點綴著這片宇宙畫卷。林茲暗星雲（LDN） 1622 在朦朧的氫氣輝光背景下若隱若現，唯有透過長時間望遠鏡曝光才能捕捉到這片區域的微弱光芒。相映成趣的是，更明亮的反射星雲vdB 62 恰好位於塵埃瀰漫的暗星雲上方，其輪廓更為清晰可辨。 LDN 1622 位於銀河系平面附近，在天球上毗鄰巴納德環——這片巨大星雲環繞著獵戶座腰帶與寶劍區域密集的發射星雲群。LDN 1622 的遮蔽塵埃呈現向後掠過的輪廓，據推測其距離與巴納德環相近，約 1500 光年。 在該距離下，這片 3 度視場範圍約橫跨 100 光年。年輕恆星確實隱藏在這片黑暗區域中，並已被斯皮策太空望遠鏡的紅外影像所揭示。然而，LDN 1622 令人不寒而慄的視覺外觀，使其獲得了"布吉曼星雲"的通俗名稱。
原文：The silhouette of an intriguing dark nebula inhabits this cosmic scene. Lynds' Dark Nebula (LDN) 1622 appears against a faint background of glowing hydrogen gas only visible in long telescopic exposures of the region. In contrast, a brighter reflection nebula, vdB 62, is more easily seen just above the dusty dark nebula. LDN 1622 lies near the plane of our Milky Way Galaxy, close on the sky to Barnard's Loop, a large cloud surrounding the rich complex of emission nebulae found in the Belt and Sword of Orion. With swept-back outlines, the obscuring dust of LDN 1622 is thought to lie at a similar distance, perhaps 1,500 light-years away. At that distance, this 3 degree wide field of view would span about 100 light-years. Young stars do lie hidden within the dark expanse and have been revealed in Spitzer Space telescope infrared images. Still, the foreboding visual appearance of LDN 1622 inspires its popular name, the Boogeyman Nebula.
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