Comet C/2025 A6 (Lemmon) is now making its closest pass to Earth. It should grow brighter and be visible over the next week — it won’t be seen again for another 1300 years. While not as luminous as last year’s Comet C/2023 A3 (Tsuchinshan–Atlas), it is still the brightest comet to visit us this year.
To see it, go to a dark location about 45 minutes to an hour after sunset. It will be low in the western sky, about 55 million miles away from Earth. Since it is dim, binoculars will be helpful. Above is a photo of the comet at 7:30pm on Thursday, October 23.
And here’s a closeup using a 300mm lens. It is said to be green, but I didn’t see that.
I returned on Saturday, October 25 with a 850mm lens and was able to see the green:
It will be in the far right of the Constellation Scorpius after 7:15 pm. I hope you will be able to see it.
Nice shots. The green is fluorescing diatomic carbon. It’s prominent in the coma, but not so much in the tails.
Comet Lemmon is well past Scorpius, and will now be moving along Serpens Caput and across Ophiuchus, getting lower and more southerly as the week progresses.
First I have heard of this comet, thank you for posting! I’ve been a comet fan since comet Neowise gave us an enjoyable distraction from earthly troubles.