太陽邊緣的 AR 3664
AR 3664 at the Sun's Edge
來源：Sebastian Voltmer｜發表日期：2024-05-15
最近產生極光的怪獸活動區在太陽邊緣時是什麼樣子？在那裡，AR 3664 更好地展示了它的三維結構。圖為拍攝到的從混亂的太陽黑子區AR 3664 向太空延伸的大型多稜形太陽突出，這只是從這個狂暴的太陽區噴射出的粒子云的一個例子。地球很容易就能位於這個延伸很長的日珥之下。 這張照片是兩天前從這個不斷變化的區域拍攝的。昨天，這裡噴射出了多年來最強的太陽耀斑（未顯示），屬於上X 級。耀斑發出的紫外線迅速進入地球大氣層，導致南北美洲短波無線電停電。儘管 AR 3664 和隨後的日冕物質拋射（CMEs）的粒子現在已經旋轉到稍稍遠離地球的方向，但它們仍可能沿著彎曲的磁場線穿過太陽系內部，並在地球上產生更多的極光。 相簿：來自太陽活動區域 6443 的地球極光
原文：What did the monster active region that created the recent auroras look like when at the Sun's edge? There, AR 3664 better showed its 3D structure. Pictured, a large multi-pronged solar prominence was captured extending from chaotic sunspot region AR 3664 out into space, just one example of the particle clouds ejected from this violent solar region. The Earth could easily fit under this long-extended prominence. The featured image was captured two days ago from this constantly changing region. Yesterday, the strongest solar flare in years was expelled (not shown), a blast classified in the upper X-class. Ultraviolet light from that flare quickly hit the Earth's atmosphere and caused shortwave radio blackouts across both North and South America. Although now rotated to be facing slightly away from the Earth, particles from AR 3664 and subsequent coronal mass ejections (CMEs) might still follow curved magnetic field lines across the inner Solar System and create more Earthly auroras. Gallery: Earth Aurora from Solar Active Region 6443
※ 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。