Aurora + Comet C/2025 A6 (Lemmon), Taken by Alan C Tough on October 18, 2025 @ Elgin, Moray, Scotland, UK
SPACEWEATHER.COM NEWS: 10/20/2025
COMET LEMMON AND THE GEOMAGNETIC STORM: An overdue CME passed near Earth during the late hours of Oct. 17th. The near-miss produced an unexpected photo-op. Auroras swallowed Comet Lemmon (C/2025 A6):
Comet Lemon (C/2025 A6), Taken by Rolando Ligustri on October 5, 2025 @ from New Mexico, Astrottica Obs
SPACEWEATHER.COM NEWS: 10/05/2026
DON’T FORGET COMET LEMMON: With so much attention on interstellar Comet 3I/ATLAS, it is easy to forget a local comet brightening so rapidly that ordinary sky watchers will soon be able to see it with their own eyes: Comet Lemmon (C/2025 A6). It is falling toward the sun for a close encounter near the orbit of Mercury on Nov. 8th.
Not only is this comet bright, but also it is remarkably active. In recent nights, amateur astronomers have watched dozens of gaseous knots and filaments billowing down Lemmon’s tail. Here’s a freeze-frame on Oct. 5th from Italian astronomer Rolando Ligustri.
