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Episode 4 of 4

End of Naked-Eye Visibility

When: 1861-08
Where: Unresolved
Part of: Comet C/1861 J1, the Great Comet of 1861, is discovered

By the middle of August 1861, the comet was no longer visible to the naked eye, though visible in telescopes until May 1862.

The comet was visible to the naked eye for approximately three months. By the middle of August 1861, it was no longer visible to the naked eye, but remained visible in telescopes until May 1862.

Sources

C/1861 J1 (Tebbutt) Wikipedia, revision of 2026-07-19

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.