History · Anniversaries

175th anniversary: William Lassell found Umbriel and Ariel, the third and fourth Uranian moons to...

Name: 175th anniversary: William Lassell found Umbriel and Ariel, the third and fourth Uranian moons to...
Start: 2026-10-24

Sat, October 24, 2026

16 days ago

In 1851, William Lassell found Umbriel and Ariel, the third and fourth Uranian moons to be discovered.

Also on Oct 24, 2026

Source, method and history

Source: Wikipedia
How we know: Wikipedia "On this day" selected anniversary, 175 years (1851 to 2026).
Recurs: annual
Feed: Subscribe to Anniversaries
Changes: None recorded.