During the comet’s closest approach, Johnston — who sourced a model suggesting 7:12 a.m. to 8:06 a.m will be its brightest times — estimates it “will be bright enough to see during the ...

As the comet approached its perihelion—the closest point in its orbit to the Sun—at around 7:30 a.m. ET on Monday, however, it was completely vaporized by the sun's intense heat and radiation.

Comet A3 Tsuchinshan-ATLAS proved to be photogenic as it lit up the early autumn skies of the Northern Hemisphere this month. Comet C/2023 A3 (Tsuchinshan-ATLAS) has not disappointed photographers ...