銀河和爆炸流星
Milky Way and Exploding Meteor
來源：Andre van der Hoeven｜發表日期：2025-08-03
大約一週後，英仙座流星雨將達到最大值。 冰冷的岩石顆粒在進入地球大氣層時會蒸發，從而劃過天空。 這些冰粒是從斯威夫特-塔特爾彗星上脫落的。 英仙座流星雨是地球每年穿越斯威夫特-塔特爾彗星軌道時產生的，通常是一年中最活躍的流星雨。 雖然很難預測流星雨的活躍程度，但在晴朗黑暗的天空中，觀測者可能一分鐘就能看到一顆流星。 今年英仙座流星雨的高峰期就在滿月後的幾天，因此一些微弱的流星會被月光掩蓋。 一般來說，流星雨最好在遠離燈光的輕鬆位置觀看。 這裡展示的是 2015 年英仙座流星雨期間在奧地利上空銀河系中央帶旁邊爆炸時捕捉到的流星。
原文：In about a week the Perseid Meteor Shower will reach its maximum. Grains of icy rock will streak across the sky as they evaporate during entry into Earth's atmosphere. These grains were shed from Comet Swift-Tuttle. The Perseids result from the annual crossing of the Earth through Comet Swift-Tuttle's orbit, and are typically the most active meteor shower of the year. Although it is hard to predict the level of activity in any meteor shower, in a clear dark sky an observer might see a meteor a minute. This year's Perseids peak just a few days after full moon, and so some faint meteors will be lost to the lunar skyglow. Meteor showers in general are best seen from a relaxing position, away from lights. Featured here is a meteor caught exploding during the 2015 Perseids above Austria next to the central band of our Milky Way Galaxy.
※ 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。