Editing Umbriel (section)

== Discovery and name ==
Umbriel, along with another Uranian satellite, [[Ariel (moon)|Ariel]], was discovered by [[William Lassell]] on October 24, 1851.<ref>The Times 24 October 2024 page 25 "On this day"</ref><ref name="Lassell 1851" /><ref name="Lassell, letter 1851" /> Although [[William Herschel]], the discoverer of [[Titania (moon)|Titania]] and [[Oberon (moon)|Oberon]], claimed at the end of the 18th century that he had observed four additional moons of Uranus,<ref name="Herschel 1798" /> his observations were not confirmed and those four objects are now thought to be spurious.<ref name="Struve 1848" />

All of Uranus's moons are named after characters created by [[William Shakespeare]] or [[Alexander Pope]]. The names of all four satellites of Uranus then known were suggested by [[John Herschel]] (son of William) in 1852 at the request of Lassell,<ref name="Lassell 1852" /> though it is uncertain if Herschel devised the names, or if Lassell did so and then sought Herschel's permission.<ref name=podcast>{{cite web |url=https://www.folger.edu/podcasts/shakespeare-unlimited/shakespearean-moons-uranus/ |title=The Shakespearean Moons of Uranus |last=Paul |first=Richard |date=2014 |website=folger.edu |publisher=Folger Shakespeare Library |access-date=February 25, 2024 |quote=}}</ref> Umbriel is the "dusky melancholy sprite" in Alexander Pope's ''[[The Rape of the Lock]]'',<ref name="Kuiper 1949" /> and the name suggests the [[Latin]] {{lang|la|[[umbra]]}}, meaning {{gloss|shadow}}. <!--The adjectival form of the name is ''Umbrielian''.--> The moon is also designated ''Uranus&nbsp;II''.<ref name="Lassell, letter 1851" />

Planetary moons other than Earth's were never given symbols in the astronomical literature. Denis Moskowitz, a software engineer who designed most of the [[dwarf planet]] symbols, proposed a U (the initial of Umbriel) combined with the low globe of [[Jérôme Lalande]]'s Uranus symbol as the symbol of Umbriel ([[File:Umbriel symbol (fixed width).svg|16px]]). This symbol is not widely used.<ref name=moons>{{cite web |url=https://www.unicode.org/L2/L2025/25079-phobos-and-deimos.pdf |title=Phobos and Deimos symbols |last1=Bala |first1=Gavin Jared |last2=Miller |first2=Kirk |date=7 March 2025 |website=unicode.org |publisher=The Unicode Consortium |access-date=14 March 2025 |quote=}}</ref>