 |
Астронет: Астрономическая картинка дня Спутник Урана Оберон: мир метеоритных кратеров http://variable-stars.ru/db/msg/1161722/eng |
Credit & Copyright: NASA, Voyager 2;
Courtesy Calvin J. Hamilton
Explanation:
Oberon is the most distant and second largest moon of Uranus. Discovered by
William Herschel
in 1787, the properties of the world remained relatively
unknown until the robot spacecraft
Voyager 2
passed it during its flyby of
Uranus in January 1986. Compared to Uranus'
moons
Ariel,
Titania, and
Miranda,
Oberon is heavily cratered, and in this
way resembles
Umbriel.
Like all of Uranus' large moons,
Oberon is composed
of roughly half ice and half rock. Note that Oberon has at least one
large mountain, visible on the limb at the lower left, that rises 6 km off
the surface.
Latest Comet Hyakutake images:
APOD Hyakutake Archive,
JPL,
Fayetteville
Observer-Times,
NASA's Night of
the Comet,
ICSTARS,
Jerry Lodriguss,
ScienceWeb,
Crni Vrh Obs.,
Cent. Mich. U.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.