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Discovery of Hyperion

When: September 1848
Where: United States and United Kingdom
Part of: Bond and Lassell discover Hyperion, moon of Saturn

William Cranch Bond, George Phillips Bond, and William Lassell independently discovered Hyperion in September 1848.

William Lassell saw Hyperion two days after William Bond. A contemporary reference is MNRAS 9 (1848) 1. Lassell endorsed Herschel's naming scheme and suggested the name Hyperion.

Sources

Hyperion (moon) Wikipedia, revision of 2026-10-04
George Phillips Bond Wikipedia, revision of 2026-08-29
William Cranch Bond Wikipedia, revision of 2026-09-15

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.