萊蒙彗星遊蕩的尾巴
Comet Lemmon's Wandering Tail
發表日期：2025-11-17
萊蒙彗星的尾巴怎麼了？答案是被風吹走了--這裡指的是來自太陽的風。太陽帶電粒子的持續外流最近變化很大，因為太陽發射的能量爆發（CMEs）將彗星本身發射的帶電粒子擠出並偏轉。因此，C/ 2025 A 6 （萊蒙）彗星的藍色離子尾巴不僅錯綜複雜，而且出現了一些不同尋常的轉折。上個月從西班牙阿爾法卡爾拍攝的這張長時間合成影像捕捉到了這一太陽系內部的離子騷動。萊蒙彗星正逐漸遠離地球和太陽，返回外太陽系。
原文：What has happened to Comet Lemmon's tail? The answer is blowing in the wind — the wind from the Sun in this case. This continuous outflow of charged particles from the Sun has been quite variable of late, as the Sun emits bursts of energy, CMEs, that push out and deflect charged particles emitted by the comet itself. The result is a blue hued ion tail for Comet C/2025 A6 (Lemmon) that is not only impressively intricate but takes some unusual turns. This long-duration composite image taken from Alfacar, Spain last month captured this inner Solar System ionic tumult. Comet Lemmon is now fading as it heads out away from the Earth and Sun and back into the outer Solar System.
※ 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。