The coma and long tail of comet Tsuchinshan-ATLAS, also called C/2023 A3 (Tsuchinshan–ATLAS), is currently shining at magnitude +0.5. That's well within the grasp of the human eye. It's likely now past its best, but only just, and will likely remain a naked-eye object after sunset in the west until, and possibly through, the weekend.

The 'comet of the century' will soon be gone for another 80,000 years, but you can still see it this weekend. Here's how.