Comet September 2024 Nishimura. Here's how to see it this week before it's gone for 400 years. The green comet c/2023 p1 (nishimura), discovered a month ago, is expected to reach its peak brightness (mag 2.8) by september 17 when it passes perihelion (closest point.

It’s rising later each morning as it tracks quickly through the stars of leo the lion. In this article, we will introduce you to a newly discovered comet named nishimura, which will be visible in the northern hemisphere for five mornings in september 2023.