黑暗兜帽星雲
The Dark Doodad Nebula

來源:Martin Pugh &
Rocco Sung|發表日期:2024-06-25
天空中那條奇怪的棕色條帶是什麼? 在觀測星團 NGC 4372 時,觀測者經常會注意到附近有一條長約 3 度的不尋常暗色條紋。這條條紋實際上是一個長長的分子云,被稱為黑暗邋遢星雲(Dark Doodad Nebula)。 (Doodad 是俚語,意為 "小東西 "或 "小玩意兒")如圖,暗Doodad 星雲穿過豐富多彩的星域中心。 它的深色來自於高濃度的星際塵埃,這些塵埃會優先散射可見光。 球狀星團 NGC 4372 就像最左邊的模糊白點一樣清晰可見,而明亮的藍色恆星 gamma Muscae 則位於星團的右上方。用強雙筒望遠鏡可以在飛魚座(Musca)南側發現暗鬥星雲。
原文:What is that strange brown ribbon on the sky? When observing the star cluster NGC 4372, observers frequently take note of an unusual dark streak nearby running about three degrees in length. The streak, actually a long molecular cloud, has become known as the Dark Doodad Nebula. (Doodad is slang for a thingy or a whatchamacallit.) Pictured here, the Dark Doodad Nebula sweeps across the center of a rich and colorful starfield. Its dark color comes from a high concentration of interstellar dust that preferentially scatters visible light. The globular star cluster NGC 4372 is visible as the fuzzy white spot on the far left, while the bright blue star gamma Muscae is seen to the cluster's upper right. The Dark Doodad Nebula can be found with strong binoculars toward the southern constellation of the Fly (Musca).
※ 本文由萌芽機器人自動轉貼自每日一天文圖(Astronomy Picture of the Day,APOD),原文為英文,正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理,內容僅供參考,若有任何錯誤之處還請見諒!
關於每日一天文圖:每日一天文圖網站是美國國家航空暨太空總署與密西根理工大學提供的服務,網站每天提供一張影像或圖片,並由天文學家撰寫扼要說明其特別之處。