昴宿星團塵封七姐妹
The Pleiades: Seven Dusty Sisters
來源：Craig Stocks｜發表日期：2024-01-29
眾所周知的昴宿星團正在緩慢地摧毀一部分流逝的氣體和塵埃雲。昴宿星團是地球天空中最明亮的疏散星團，幾乎在任何偏北的地方都能用肉眼看到。 在過去的 10 萬年裡，一團氣體和塵埃雲偶然穿過了昴宿星團，並在恆星和塵埃之間引起了強烈的反應。穿過的雲團可能是拉德克利夫波的一部分，拉德克利夫波是一種新發現的氣體和塵埃結構，連線著銀河系附近幾個恆星形成區域。 來自恆星光線的壓力極大地排斥了周圍藍色反射星雲中的塵埃，較小的塵埃顆粒受到的排斥更為強烈。 短期結果是，部分塵埃雲變成了絲狀和層狀。這張特寫的深度影像經過了近 9 個小時的曝光，是去年從美國猶他州的猶他沙漠遙感天文臺拍攝的。
原文：The well-known Pleiades star cluster is slowly destroying part of a passing cloud of gas and dust. The Pleiades is the brightest open cluster of stars on Earth's sky and can be seen from almost any northerly location with the unaided eye. Over the past 100,000 years, a field of gas and dust is moving by chance right through the Pleiades star cluster and is causing a strong reaction between the stars and dust. The passing cloud might be part of the Radcliffe wave, a newly discovered structure of gas and dust connecting several regions of star formation in the nearby part of our Milky Way galaxy. Pressure from the stars' light significantly repels the dust in the surrounding blue reflection nebula, with smaller dust particles being repelled more strongly. A short-term result is that parts of the dust cloud have become filamentary and stratified. The featured deep image incorporates nearly 9 hours of exposure and was captured from Utah Desert Remote Observatory in Utah, USA, last year.
※ 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。