Comet C/2023 A3 Tsuchinshan-ATLAS reaches its perihelion on Friday. This marks its closest pass by our sun in its 80,000 year-long orbit. It is expected that the comet will be just bright enough to ...
The final hurdle for Tsuchinshan-ATLAS to surmount will come on the afternoon of Sept. 27, when it arrives at perihelion — the closest point in its orbit to the sun.