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How, when, and where to look to see Comet C/2023 A3 (Tsuchinshan-ATLAS) after sunset this Wednesday, Oct. 30, with sky charts, before it disappears.

How bright is the comet now? As of Monday, Comet C/2023 A3 Tsuchinshan (Choo-cheen-SHAHN)–ATLAS is beginning to grow fainter every night — way dimmer than it was Oct. 12.

Comet Tsuchinshan-ATLAS captivated the Northern Hemisphere. Now, Australians have a chance to see the celestial visitor that hasn't passed through our part of the solar system for 80,000 years.

Only discovered in 2023, Comet C/2023A3 Tsuchinshan-ATLAS is visible through the naked eye right now. It won't return for another 80,000 years.

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.