莱蒙彗星的流浪尾巴
(原标题: Comet Lemmon's Wandering Tail)
2025-11-17
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莱蒙彗星的尾巴怎么了？答案是在风中吹——在这种情况下是来自太阳的风。太阳不断流出的带电粒子最近变化很大，因为太阳会释放出能量爆发，即cme，它会将彗星自身释放的带电粒子推开并偏转。结果是彗星C/2025 A6（莱蒙）的蓝色离子尾巴，不仅令人印象深刻的复杂，而且有一些不寻常的转弯。这张上个月在西班牙阿尔法卡拍摄的长时间合成图像捕捉到了太阳系内部的离子骚动。莱蒙彗星正逐渐远离地球和太阳，返回外太阳系。
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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.