internal activity other than some unknown dark material that apparently Both northern and southern poles spend 42 years in a complete darkness, and another 42 years in continuous sunlight, with the sun rising close to the zenith over one of the poles at each solstice. Oberon has at least one large mountain that rises about 6 km off the surface. We're talking about the ice giants. This causes the satellites to experience extreme seasonal cycles. [26] A peak with a height of about 11 km was observed in some Voyager images near the south-eastern limb of Oberon,[28] which may be the central peak of a large impact basin with a diameter of about 375 km. This Voyager 2 picture of Oberon is the best the spacecraft acquired of Uranus' second-largest moon. We do not yet have the answer for oberon moon Crossword Clue. This caused strong extensional stresses in the moon's crust leading to cracking.

Guiding that effort are NASA test directors, or NTDs. The north and south poles of Oberon have 42 years of continuous darkness and the next 42 years of continuous sunlight.

Whereas other Uranian moons exhibit more water ice presence in their leading hemispheres, Oberon exhibits stronger signatures in its trailing hemisphere. As a result, one face of the moon is tidally locked with Uranus, that is, it always faces the planet. One such event, which lasted for about six minutes, was observed on May 4, 2007, when Oberon occulted Umbriel.[18]. Oberon was discovered in Jan. 11, 1787 by William Herschel.

Formed form the accretion of dust and debris, the comparatively high density of Oberon indicates that it may have been poor in water content and containing more rocky material.

(Courtesy A. Tayfun Oner)

[6], All of the moons of Uranus are named after characters created by William Shakespeare or Alexander Pope. This is the highest resolution image of Oberon taken by the Some of the basins formed by impacts have large peaks at the center. Oberon has several large impact craters where it has been hit by meteorites. The surface of Oberon also has many deep elongated depressions called chasmata. This coincides with its rotational period. Oberon’s surface also has a number of chasmata or canyons that intersect the landscape. It is believed that it is remained stable from the days its formation.

It is also the ninth largest moon in our solar system.

[16] As a result, its surface is directly struck by the solar wind. [17] Meteorite impacts tend to sputter (knock out) ice from the surface, leaving dark non-ice material behind.

The temperature in the moon varies between 70 and 80 degrees Kelvin. The geology of Oberon was influenced by two competing forces: impact crater formation and endogenic resurfacing. The pressure at the center of the core is about 5 kbar. He discovered Oberon and Titania on the same day. This darkening of this material is assumed to have been caused by radiation processing of compounds of an organic nature. is at the top in the map. The density of Oberon is about 1.63 g/cm3 and has a surface gravity of about 0.348 m/s2. This means that it is only marginally smaller than the largest Uranian moon, Titania. Credit: NASA Visualization Technology Applications and Development (VTAD). The endogenic processes were mainly tectonic in nature and led to the formation of the canyons, which are actually giant cracks in the ice crust. Meet the women leading two of humankind's two most distant space missions. Kristen Erickson

[22] Its surface shows a strong opposition surge: its reflectivity decreases from 31% at a phase angle of 0° (geometrical albedo) to 22% at an angle of about 1°. Oberon’s density is indicative of the fact that it contains equal proportions of water ice as well as a non-ice dense component. Some scientists hypothesized that they are of cryovolcanic origin (analogs of lunar maria),[26] while others think that the impacts excavated dark material buried beneath the pure ice (crust). The nature of the dark patches, which mainly occur on the leading hemisphere and inside craters, is not known. Another theory has it that the reddening may have been caused by reddish material accretion from the outer sections including irregular satellites that are seen to impact the leading hemisphere more.

Oberon is the farthest big moon of the planet Uranus.It is made of about half ice and half rock. A photo of Oberon. This high number of craters indicates that Oberon has the most ancient surface among Uranus's moons. a high mountain rises 6 kilometers (4 miles) above its surroundings. In the entire solar system it is the ninth most massive moon. The Uranian system has been studied up close only once: the spacecraft Voyager 2 took several images of Oberon in January 1986, allowing 40% of the moon's surface to be mapped. [12] In 1851 Lassell eventually numbered all four known satellites in order of their distance from the planet by Roman numerals, and since then Oberon has been designated Uranus IV. This image is a reprojected view of Oberon using the above map. Oberon is assumed to have formed from the diffuse material around Uranus after the planet was formed.

The structure of Oberon is that of a rocky core covered by a mantle made of ice.