塵封七姐妹
Seven Dusty Sisters
發表日期：2024-09-29
這真的是著名的昴宿星團嗎？昴宿星團以其標誌性的藍色恆星而聞名，這裡顯示的是紅外光下的昴宿星團，周圍的塵埃掩蓋了恆星。在這裡，三種紅外線顏色被對映成視覺顏色（R= 24 ，G= 12 ，B= 4 . 6 微米）。基礎影像由 NASA 的軌道寬視場紅外巡天探測器（WISE）太空飛行器拍攝。昴宿星團被編入 M 45 星系，綽號七姊妹星，碰巧位於一閃而過的塵埃雲中。大質量昴宿星團恆星發出的光和風優先排斥較小的塵埃粒子，導致塵埃分層成絲狀，如圖所示。這幅特寫圖片距離昴宿星團約 20 光年，距離牛座（金牛座）約 450 光年。
原文：Is this really the famous Pleiades star cluster? Known for its iconic blue stars, the Pleiades is shown here in infrared light where the surrounding dust outshines the stars. Here, three infrared colors have been mapped into visual colors (R=24, G=12, B=4.6 microns). The base images were taken by NASA's orbiting Wide Field Infrared Survey Explorer (WISE) spacecraft. Cataloged as M45 and nicknamed the Seven Sisters, the Pleiades star cluster is by chance situated in a passing dust cloud. The light and winds from the massive Pleiades stars preferentially repel smaller dust particles, causing the dust to become stratified into filaments, as seen. The featured image spans about 20 light years at the distance of the Pleiades, which lies about 450 light years distant toward the constellation of the Bull (Taurus).
※ 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。