A few days after photographing Comet C/2025 A6 Lemmon from Athens, I got another chance to catch it from Doloi in Greece.
On November 2, at around 6:20 pm, Lemmon was still visible in the evening sky. I had hoped to take a longer series of images and turn them into a small animation showing the comet moving against the background stars.
While I was imaging, a thunderstorm started quickly moving in. In the end, I only managed to get three images before Lemmon disappeared. So there is no animation. Instead, I stacked three images into this single view of the comet.
Placed next to each other, however, they turned out to be quite interesting on their own. The ion tail seems to change noticeably within those 22 minutes. In the 18:29 image, a faint wisp or kink appears about halfway along the tail, while the overall structure looks different again in the final frame. Comet tails can change surprisingly quickly as they interact with the solar wind, although with only three images I can’t tell exactly what happened here.