Episode 2 of 2

Discovery of Enceladus

When
28 August 1789
Where
Observatory House, Slough, England
Part of
Discovery of Enceladus by William Herschel

William Herschel first observed Saturn's moon Enceladus on 28 August 1789 using his newly completed 40-foot telescope.

On 28 August 1789, William Herschel discovered Enceladus during the first use of his new 1.2 m (47 in) 40-foot telescope, then the largest in the world, at Observatory House in Slough, England. Enceladus is the sixth-largest moon of Saturn and the 18th largest in the Solar System. Little was known about it until Voyager 1 and Voyager 2 flew by Saturn in 1980 and 1981.

Sources

  1. Enceladus Wikipedia, revision of 2026-09-28

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.