Umbriel (moon) - Wikipedia, the free encyclopedia
|
|
Umbriel (pronounced /ˈʌmbriəl/ ) is a moon of Uranus discovered on October 24, 1851, by William Lassell. It was discovered at the same time as Ariel and named after a character in the Alexander...
en.wikipedia.org/wiki/Umbriel_(moon)
|
|
|
Umbriel's heavily cratered surface has probably been stable since its formation. It has far more and larger craters than do Ariel and Titania. Umbriel is very dark; it reflects only about half as much light as Ariel, Uranus' brightest satellite.
|
library.thinkquest.org/C0115361/ariel.html
library.thinkquest.org/C0115361/ariel.html
|
|
|
|
Planet Uranus question: Who discovered the moons Miranda Ariel Umbriel Titania and Oberon and What year where they found? The eleventh of Uranus' moons is the world Miranda. Miranda is a very interesting ... Discuss the question "Who discovered the moons Miranda Ariel Umbriel Titania and Oberon and What year where they found?"
|
wiki.answers.com/Q/Who_discovered_the_moons_Miranda_Ari...
wiki.answers.com/Q/Who_discovered_the_moons_Miranda_Ariel_Umbriel_Titania_and_Oberon_and_What_year_where_they_found
|
|
|
|
Science question: Who discovered the moons Ariel and Umbriel and in what year did they find them? William Lassell discovered them on October 24, 1851. ... Ariel and umbriel discovered larger moons? Who discovered satellites ariel and umbriel? Whjo discovered the moons Ariel and Umbriel? Who do discovered the moon ariel...
|
wiki.answers.com/Q/Who_discovered_the_moons_Ariel_and_U...
wiki.answers.com/Q/Who_discovered_the_moons_Ariel_and_Umbriel_and_in_what_year_did_they_find_them
|
|
|
New near-infrared reflectance spectra are presented for Ariel and Umbriel. Water ice on the surface of Ariel and Umbriel is verified from spectral ...
|
linkinghub.elsevier.com/retrieve/pii/0019103581900269
|
|
Ariel and Umbriel have passed through the 5:3 mean-motion commensurability if the specific dissipation function (Q) for Uranus is less than about 100000. ...
|
linkinghub.elsevier.com/retrieve/pii/0019103588900383
|
|
Distributions of H2O and CO2 ices on Ariel, Umbriel, Titania, and Oberon from IRTF/SpeX observations ... We also examine H2O ice absorptions in the spectra, finding deeper H2O bands on the leading hemispheres of Ariel, Umbriel, and Titania, but the opposite pattern on Oberon. Potential mechanisms to produce the...
|
adsabs.harvard.edu/abs/2006Icar..184..543G
|
|
Tidal evolution of the Uranian satellites. III - Evolution through the Miranda-Umbriel 3:1, Miranda-Ariel 5:3, and Ariel-Umbriel 2:1 mean-motion commensurabilities...
|
adsabs.harvard.edu/abs/1990Icar...85..394T
|
|
Umbriel is the darkest of Uranus' largest moons. It reflects only 16 percent of the light that strikes its surface, a feature similar to the highland areas of Earth's Moon. Other Uranian moons are much brighter. The process by which Umbriel's ancient cratered surface was darkened remains a mystery.
|
solarsystem.nasa.gov/planets/profile.cfm?Object=Ura_Umb...
solarsystem.nasa.gov/planets/profile.cfm?Object=Ura_Umbriel
|
|
.jpg){kind=link}