LDN 1235 :鯊魚星雲
LDN 1235: The Shark Nebula

來源:Timothy Martin|發表日期:2025-03-18
地球上沒有大到足以容納鯊魚星雲的海洋。這個捕食者幽靈不會給我們帶來任何危險,因為它只是由星際氣體和塵埃組成的。像這裡的黑灰塵有點像香菸的煙霧,產生於巨星的冷大氣中。大質量恆星在排出氣體並在重力作用下重新凝結後,可能會利用其高能量的光和快速的恆星風作為雕刻工具,在其誕生雲中雕刻出複雜的結構。 它們產生的熱量會蒸發渾濁的分子云,並使周圍的氫氣分散併發出紅光。 在解體過程中,我們人類可以把這些巨大的雲想象成常見的圖示,就像我們在地球上看到的水雲一樣。鯊魚星雲(有時也被編為 LDN 1235 )包括一些較小的塵埃星雲,如凡登堡 149 和 150 號星雲,跨度約為 15 光年,位於 650 光年外的埃提俄比亞王座(仙王座)方向。 探索你的宇宙隨機 APOD 生成器
原文:There is no sea on Earth large enough to contain the Shark nebula. This predator apparition poses us no danger as it is composed only of interstellar gas and dust. Dark dust like that featured here is somewhat like cigarette smoke and created in the cool atmospheres of giant stars. After expelling gas and gravitationally recondensing, massive stars may carve intricate structures into their birth cloud using their high energy light and fast stellar winds as sculpting tools. The heat they generate evaporates the murky molecular cloud as well as causing ambient hydrogen gas to disperse and glow red. During disintegration, we humans can enjoy imagining these great clouds as common icons, like we do for water clouds on Earth. Including smaller dust nebulae such as Van den Bergh 149 & 150, the Shark nebula, sometimes cataloged as LDN 1235, spans about 15 light years and lies about 650 light years away toward the constellation of the King of Aethiopia (Cepheus). Explore Your Universe: Random APOD Generator
※ 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!
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