流星與星團
The Meteor and the Star Cluster

來源:Yousif Alqasimi &
Essa Al Jasmi|發表日期:2025-08-25
有時,天空也會給你帶來驚喜。 為了看到昴宿星團(M 45 )中更多的恆星和微弱的星雲物質,需要進行長時間曝光。 很多時候,曝光中會出現一些不那麼有趣的東西,這些東西並不是我們想要的,而是後來被編輯掉了。其中包括卡住的畫素、宇宙射線擊中、有明亮雲層或地球月球的畫面、飛機軌跡、鏡頭耀斑、微弱的衛星軌跡,甚至昆蟲軌跡。 不過,有時也會偶然捕捉到一些真正有趣的東西。幾周前,在沙烏地阿拉伯的烏拉(al-Ula)拍攝昴宿星團時,一顆明亮的流星劃過。除了著名的明亮藍星、不那麼著名也不那麼明亮的藍星以及星團周圍反射藍色的塵埃之外,這塊快速的岩石碎片還產生了獨特的綠色光芒,這很可能是由於蒸發的金屬造成的。 拼圖宇宙每日天文拼圖
原文:Sometimes even the sky surprises you. To see more stars and faint nebulosity in the Pleiades star cluster (M45), long exposures are made. Many times, less interesting items appear on the exposures that were not intended -- but later edited out. These include stuck pixels, cosmic ray hits, frames with bright clouds or Earth's Moon, airplane trails, lens flares, faint satellite trails, and even insect trails. Sometimes, though, something really interesting is caught by chance. That was just the case a few weeks ago in al-Ula, Saudi Arabia when a bright meteor streaked across during an hour-long exposure of the Pleiades. Along with the famous bright blue stars, less famous and less bright blue stars, and blue-reflecting dust surrounding the star cluster, the fast rock fragment created a distinctive green glow, likely due to vaporized metals. Jigsaw Universe: Astronomy Puzzle of the Day
※ 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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