Episode 2 of 2

Discovery of Triton from Liverpool

Name: Discovery of Triton from Liverpool
Start: 1846-10-10
Location: Liverpool

When: 10 October 1846
Where: Liverpool
Part of: Neptune discovered at Berlin Observatory; Lassell finds Triton

William Lassell discovered Triton, Neptune's largest moon, on 10 October 1846, seventeen days after the planet's discovery.

Lassell, working from Liverpool, identified Triton as the first Neptunian moon. The discovery occurred seventeen days after Galle's observation of Neptune. Lassell used his self-built instrument to confirm the satellite's existence, establishing its status as Neptune's largest moon.

Sources

Triton (moon) Wikipedia, revision of 2026-10-01
William Lassell Wikipedia, revision of 2026-08-29

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.