太陽上的日冕環
Coronal Loops on the Sun
來源：Andrea Vanoni｜發表日期：2025-07-30
我們的太陽經常以環狀爆發。 炙熱的太陽等離子體從太陽表面躍出，形成突出物，最常見的突出物是一個簡單的環。 環形狀源於太陽的磁場，磁場由螺旋狀的電子和質子構成。 許多進入太陽下冕的環狀物大到足以包圍地球，而且穩定得可以持續數天。 它們通常出現在活動區附近，這些活動區也包括黑子。 特寫板塊顯示了四個環，每個都是在 2024 年和 2025 年期間在太陽邊緣附近捕捉到的。這些影像是由義大利曼託瓦的個人望遠鏡拍攝的，主要是氫發出的一種非常特殊的光色。一些太陽突出部突然裂開，向太陽系噴射粒子，形成空間天氣序列，影響地球的天空和電線。 拼圖宇宙每日天文拼圖
原文：Our Sun frequently erupts in loops. Hot solar plasma jumps off the Sun's surface into prominences, with the most common type of prominence being a simple loop. The loop shape originates from the Sun's magnetic field, which is traced by spiraling electrons and protons. Many loops into the Sun's lower corona are large enough to envelop the Earth and are stable enough to last days. They commonly occur near active regions that also include dark sunspots. The featured panel shows four loops, each of which was captured near the Sun's edge during 2024 and 2025. The images were taken by a personal telescope in Mantova, Italy and in a very specific color of light emitted primarily by hydrogen. Some solar prominences suddenly break open and eject particles into the Solar System, setting up a space weather sequence that can affect the skies and wires of Earth. 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！
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。