When To See The Comet 2025. When and where to see comet c/2025 s1 (atlas) comet c/2025 s1 (atlas) will reach its closest point to the sun—perihelion—on october 28, 2025. If you like chasing comets, here’s a guide to this year’s best and brightest.

Use the sky tonight astronomy app to find c/2023 a3 in the sky in your exact location. A ‘bright comet’ typically means an object visible through binoculars or a small telescope.