Moons of Uranus

Titania (1) titanium dioxide (2) die largest moon of Uranus named after Titania, queen of fairies, wife of Oberon in W. Shakespeare s A Midsummer Night s Dream. 

Kuiper s list of astronomical accomplishments is impressive. In addition to his work on binary stars, the atmospheres of planets and satellites, and the formation of the solar system, he discovered the fifth moon of Uranus, Miranda, and Neptune s second moon, Nereid he was an early advocate of the use of jet airplanes for high-altitude astronomical observations and he accurately predicted the nature of the lunar surface before any human had walked on it. In recognition of these achievements, Kuiper was awarded the Janssen medal of the French astronomical society and the Order of Orange Nassau by the Dutch government. Kuiper died in Mexico City on December 24,1973, while examining a number of possible sites for a new observatory. 

Uranus has also a ring system (see Fig. 3.16) which consists of very dark particles (the size of the particles ranges from micrometers to several dm). It seems that the rings are young maybe they were formed by impacts on moons of Uranus where matter was shattered. 

The cratering history on the moons of Uranus was investigated by Plescia, 1987 [265]. The surfaces of Oberon and Umbriel are interpreted to be the oldest, that of Titania intermediate and those of Ariel and Miranda the youngest. 

Uranus The temperature in the Uranus atmosphere, which consists of molecular hydrogen containing around 12% helium, is close to 60 K. A methane cloud layer has been detected in the lower layers of this atmosphere. The planet is surrounded by a magnetosphere which extends into space for about ten times the diameter of Uranus. The planet has 27 moons of various sizes and is surrounded by a ring system which consists of thin dark rings. The planet is unusual in two respects its tilted axis and retrograde rotation. 

Apart from its most general features, the physical and chemical characteristics of Uranus were largely unknown to astronomers prior to the Voyager 2 flyby in 1981. That mission, however, provided a host of new data about the planet, its ring system, and its moons. For example, Voyager reported that the temperature of the planet at both poles is approximately the same, about 58 K (—215°C), in spite of the fact that one pole always points toward the Sun and the other pole... 

The two largest satellites of Uranus, Titania and Oberon, were already discovered in 1787 by W. Herschel. Later Ariel, Umbriel and Miranda were found. The remaining ones were discovered by the Voyager 2 space probe in 1986. The smallest moons move on strongly perturbed orbits and collisions are likely to happen, e.g. Desde-mona may collide either with Cressida or Juliet within the next 100 million years. 

Our solar system consists of the Sun, the planets and their moon satellites, asteroids (small planets), comets, and meteorites. The planets are generally divided into two categories Earth-like (terrestrial) planets—Mercury, Venus, Earth, and Mars and Giant planets—Jupiter, Saturn, Uranus, and Neptune. Little is known about Pluto, the most remote planet from Earth. 

The chemical dynamics, reactivity, and stability of carbon-centered radicals play an important role in understanding the formation of polycyclic aromatic hydrocarbons (PAHs), their hydrogen-dehcient precursor molecules, and carbonaceous nanostructures from the bottom up in extreme environments. These range from high-temperature combustion flames (up to a few 1000 K) and chemical vapor deposition of diamonds to more exotic, extraterrestrial settings such as low-temperature (30-200 K), hydrocarbon-rich atmospheres of planets and their moons such as Jupiter, Saturn, Uranus, Neptune, Pluto, and Titan, as well as cold molecular clouds holding temperatures as low as 10... 

Modern telescopic and spacecraft study of Jupiter, Saturn, Uranus, and Neptune, their properties, and their systems of rings, moons, and magnetospheres, has been the purview of the planetary scientist with little connection to the universe beyond until 1995, when the first extrasolar giant planet was discovered. Now the solar system s giants are the best-studied example of a class of some 100 objects which—while only one has been measured for size and hence density—may be present 10% of Sun-like stars. 

This Hubble Space Telescope image ofthe planet Uranus shows its ring system and six of its moons. They are, clockwise from the top, Desdemona, Belinda, Ariel, Portia, Cressida and Puck. (SPACE TELESCOPE SCIENCE INSTITUTE/NASA//Photo Researchers, Inc.)... 

The chapters in this part help fill in those blanks. Chapter 8 illuminates the Moon and the Nodes of the Moon in all 12 signs. Chapters 9 and 10 discuss Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto — plus the asteroid Chiron, which was discovered in 1977 and is now routinely included in horoscopes by many astrologers. Chapter 11 talks about the Ascendant, and Chapter 12 describes the influence of the planets in each of the houses. Finally, Chapter 13 looks at the way the planets interact by analyzing the aspects, or geometrical relationships, that link them together. 

The sign that the Sun occupied at the moment of your birth is the most basic astrological fact about you. It defines your ego, motivations, needs, and approach to life. But the Sun isn t the only planet that affects you. (For astrological purposes, both luminaries — the Sun and the Moon — are called planets. Do yourself a favor and don t use this terminology when talking to astronomers.) Mercury, Venus, Mars, Jupiter, Saturn, Chiron, Uranus, Neptune, and Pluto, not to mention the Moon, represent distinct types of energy that express themselves in the style of the sign they re in. 

In NASA photographs, Neptune looks like a luminous turquoise marble, almost without features. Astronomers classify Neptune as a gas giant because, like Uranus, it s essentially a ball of gasses swirling around a metal core. It sports a dim halo of barely visible rings and has at least eight moons, including Triton — the coldest place in the solar system. 

Not only was Diana s eighth house home to both Uranus and Mars, it also held Pluto, the planet of transformation. In addition, Uranus formed a high-stress T-square pattern with the Moon and... 

I consider the planets in this order first the Sun and Moon, then the planets in order of their distance from the Sun Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. When looking up an aspect, be sure to look for it under the planet that comes first in the list. An aspect between Mercury and Uranus, for example, appears under Mercury an opposition between Venus and Pluto is discussed under Venus, and so on. 

Notice that Saturn, the planet of restriction, is now in her fifth house of children, and Uranus, the planet of the unexpected, is in her eighth house of death and transformation. Those two transits, I should point out, aren t nearly enough to trigger such an exceedingly rare and terrible loss. After all, everyone who had an Ascendant in the neighborhood of 21° Virgo also experienced those transits. A birth chart must show the potential for an event in order for it to happen. And there it is The close opposition of her natal Uranus to her natal Sun, Moon, Mars, and Neptune clearly introduces the possibility of violence. The transits acted on the possibilities already there in her remarkable chart. 

Here s the rule The transits that pack the biggest wallop are those made by the slowest planets — Saturn, Uranus, Neptune, and Pluto — to the Sun, the Moon, the Ascendant, and the faster planets. Contacts made by the faster planets are usually short-lived. Contacts made by the slower planets to the slower planets (such as Uranus opposite your Pluto or Neptune conjunct your Saturn) may be too subtle to detect (unless the natal planet happens to occupy a prominent position in your chart). But contacts made by a slow planet to one of your personal planets — Pluto conjunct your Moon, Uranus opposite your Sun, and so on — signify the chapters of your life. 

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