[91] The heating of the stratosphere is caused by absorption of solar UV and IR radiation by methane and other hydrocarbons,[102] which form in this part of the atmosphere as a result of methane photolysis. [17][86] Uranus's heat flux is only 0.0420.047W/m2, which is lower than the internal heat flux of Earth of about 0.075W/m2. p. 10, fig. Uranus is one of distant outer planets, which are sometimes called generational planets, given their slow-moving orbits and broad influence on the collective. The first consideration of any particular event, or remarkable incident, seems to be its chronology: if in any future age it should be asked, when this last-found Planet was discovered? [114] Uranus has relatively well developed aurorae, which are seen as bright arcs around both magnetic poles. WebUranus is the last planet in our solar system which can be seen by the naked eye. [114][145], William Herschel described a possible ring around Uranus in 1789. It should look like you're trying to hold the Monster Book of Monsters shut. This article is about the planet. [150][151] One hypothesis concerning the outer ring's blue colour is that it is composed of minute particles of water ice from the surface of Mab that are small enough to scatter blue light. The rings are probably quite young; the dynamics considerations indicate that they did not form with Uranus. [21] [16][75] The core is relatively small, with a mass of only 0.55Earth masses and a radius less than 20% of Uranus'; the mantle comprises its bulk, with around 13.4Earth masses, and the upper atmosphere is relatively insubstantial, weighing about 0.5Earth masses and extending for the last 20% of Uranus's radius. Uranus The 7th planet from the sun in our solar system .noted for its interesting axis of orbit and it rings. [17][86], One of the hypotheses for this discrepancy suggests that when Uranus was hit by a supermassive impactor, which caused it to expel most of its primordial heat, it was left with a depleted core temperature. Bode thought that an upright orientation, , fit better with the symbols for the other planets while remaining distinct. [64] Near the time of the equinoxes, the Sun faces the equator of Uranus giving a period of daynight cycles similar to those seen on most of the other planets. It's a HUGE region of space beyond Neptune. [21][114] Miranda has fault canyons 20km (12mi) deep, terraced layers, and a chaotic variation in surface ages and features. (See above.). [17] The planet's interior is mainly composed of ices and rock. The bulk of the mass of Uranus is in the planet's core, which [49] This symbol predominates in modern astronomical use in the rare cases that symbols are used at all. Instead, Neptune's gravity stirred up this region of space so much that the small, icy objects there weren't able to coalesce into a large planet. [67][68] A different convention is sometimes used, in which a body's north and south poles are defined according to the right-hand rule in relation to the direction of rotation. [23] When Voyager2 flew by Uranus in 1986, it observed a total of ten cloud features across the entire planet. The Assam Rifles - Friends of the Hill People? [146][147] The ring system was definitively discovered on 10 March 1977 by James L. Elliot, Edward W. Dunham, and Jessica Mink using the Kuiper Airborne Observatory. This trajectory took Voyager 1 out of the plane of the ecliptic, ending its planetary science mission. Uranus is one of distant outer planets, which are sometimes called generational planets, given their slow-moving orbits and broad influence on the collective. Uranus, in Greek mythology, the personification of heaven. [107][108] Uranus's magnetotail trails behind it into space for millions of kilometres and is twisted by its sideways rotation into a long corkscrew. May 28, 2022 [117] On 23 August 2006, researchers at the Space Science Institute (Boulder, Colorado) and the University of Wisconsin observed a dark spot on Uranus's surface, giving scientists more insight into Uranus atmospheric activity. The use of the harp points to an Asian source, and the story bears a close resemblance to the Hittite myth of Kumarbi. [16][75] This fluid, which has a high electrical conductivity, is sometimes called a waterammonia ocean. It's a part of the brain involved in emotion and memory. The gaseous atmosphere gradually transitions into the internal liquid layers. [102] The majority of this variability is thought to occur owing to changes in the viewing geometry. One result of this axis orientation is that, averaged over the Uranian year, the near-polar regions of Uranus receive a greater energy input from the Sun than its equatorial regions. But both the Oort Cloud and the Kuiper Belt are thought to be sources of comets. [17] Remote-sensing capability extends down to roughly 300km below the 1bar (100kPa) level, with a corresponding pressure around 100bar (10MPa) and temperature of 320K (47C; 116F). Voyager 2 examined all nine of the system's known rings and discovered two more. [25] The earliest definite sighting was in 1690, when John Flamsteed observed it at least six times, cataloguing it as 34 Tauri. [21] In all other respects Uranus looked like a dynamically dead planet in 1986. [69], The mean apparent magnitude of Uranus is 5.68 with a standard deviation of 0.17, while the extremes are 5.38 and 6.03. Capricorn: Ruler of the skin, body hair, ligaments, tendons, joints, knees, spleen, bones, and teeth. [21] Uranus has an atmosphere made mostly of molecular hydrogen and atomic helium, with a small amount of methane. [45] Bode argued that the name should follow the mythology so as not to stand out as different from the other planets, and that Uranus was an appropriate name as the father of the first generation of the Titans. If all is right, Taurus tends to have great upper body strength and an elegant, swan-like swan neck. Still, Herschel made an accurate description of the epsilon ring's size, its angle relative to Earth, its red colour, and its apparent changes as Uranus travelled around the Sun. The amount of material in the Kuiper Belt today might be just a small fraction of what was originally there. From Gaeas subsequent union with Uranus were born the Titans, the Cyclopes, and the Hecatoncheires. The bulk of the mass of Uranus is in the planet's core, which [149] In April 2006, images of the new rings from the Keck Observatory yielded the colours of the outer rings: the outermost is blue and the other one red. [111] The particle flux is high enough to cause darkening or space weathering of their surfaces on an astronomically rapid timescale of 100,000years. Updates? WebThe Uranus is a two-door sport compact which appears in Grand Theft Auto: San Andreas, Grand Theft Auto IV and its episodes. The anus starts at the bottom of the rectum, the last portion of the colon (large intestine). [17] The helium molar fraction, i.e. For instance, if substantial amounts of hydrogen and rocky material are mixed in the ice mantle, the total mass of ices in the interior will be lower, and, correspondingly, the total mass of rocks and hydrogen will be higher. Uranus's south pole was pointed almost directly at the Sun at the time of Voyager2's flyby in 1986. Therefore, its north and south poles lie where most other planets have their equators. 7 The Other Ringed World Uranus has 13 known rings. +420 353 941 152. socialpedagog familjeliv As your heart beats, doors open and close between the different chambers, so the blood moves one way and not the other. That's not actually what those body parts are called, but we'll forgive you if you don't sing about the innominate bone connecting to the femur connecting to the patella. They write new content and verify and edit content received from contributors. Your heart is divided up into four chambers: two ventricles and two atria. Uranus is the celestial black sheep of our small cosmic family. Roughly translated, crista galli is Latin for crest of the rooster. [148] Later they detected four additional rings. It is as likely to be a regular planet moving in an orbit nearly circular to the sun as a Comet moving in a very eccentric ellipsis. [94][103], The outermost layer of the Uranian atmosphere is the thermosphere and corona, which has a uniform temperature around 800 to 850K.[17][103] The heat sources necessary to sustain such a high level are not understood, as neither the solar UV nor the auroral activity can provide the necessary energy to maintain these temperatures. Its overall shape is like a puffed-up disk, or donut. They concluded that there must be a ring system around Uranus. The French astronomer Pierre Charles Le Monnier observed Uranus at least twelve times between 1750 and 1769,[26] including on four consecutive nights. [122] They appear to lie at a higher altitude. In Mongolian, its name is Tengeriin Van ( ), translated as 'King of the Sky', reflecting its namesake god's role as the ruler of the heavens. If Uranus has more of this magnesium than Neptune it could form a thermal insulation layer, thus potentially explaining the planet's low temperature.[88]. WebAlong with water and organic compounds, the bodys constituents include various inorganic minerals. During the negative and unfavorable transit of the planet Mercury, the individual tends 3 in Chen & Kipping (2017), Formation and evolution of the Solar System, Timeline of discovery of Solar System planets and their moons, Southern Illinois University Edwardsville, "NASA: Solar System Exploration: Planets: Uranus: Facts & Figures", http://vo.imcce.fr/webservices/miriade/?forms, "HORIZONS Planet-center Batch call for August 2050 Perihelion", "Report of the IAU/IAG Working Group on cartographic coordinates and rotational elements: 2006", "Voyager2 in the Uranian System: Imaging Science Results", "MIRA's Field Trips to the Stars Internet Education Program", "Uranus About Saying, Finding, and Describing It", "Ice Giants: The Discovery of Nepture and Uranus", "The Annual RPI and Average Earnings for Britain, 1209 to Present (New Series)", Probabilistic Forecasting of the Masses and Radii of Other Worlds, "Hawaiian Dictionary, Mary Kawena Pukui, Samuel H. Elbert", "Hubble captures rare, fleeting shadow on Uranus", "Science Says: A big space crash likely made Uranus lopsided", "Report of the IAU/IAG working group on cartographic coordinates and rotational elements of the planets and satellites: 2000", Large brightness variations of Uranus at red and near-IR wavelengths, "Twelve Year Planetary Ephemeris: 19952006", "Further investigations of random models of Uranus and Neptune", "Water-ammonia ionic ocean on Uranus and Neptune? ", The hippocampus is one of several parts of our brain involved in memory. [66] [93] Observations show that the ionosphere occupies altitudes from 2,000 to 10,000km (1,200 to 6,200mi). Hold your hand with your thumb perpendicular to your index finger, with your fingers bent where they attach to your hand and straight at all other joints. These are the auricles, and they get their name from the Latin word for ear. A resulting density of 1.27g/cm3 makes Uranus the second least dense planet, after Saturn. Photometry over the course of half a Uranian year (beginning in the 1950s) has shown regular variation in the brightness in two spectral bands, with maxima occurring at the solstices and minima occurring at the equinoxes. In 1789, Bode's Royal Academy colleague Martin Klaproth named his newly discovered element uranium in support of Bode's choice. The total mass of all the material in the Kuiper Belt today is estimated to be no more than about 10 percent of the mass of Earth. When the ancient Greeks were naming body parts, they were probably trying to give them names that were easy to remember, says Mary Fissell, a professor in the Department of the History of Medicine at Johns Hopkins. From experience I know that the diameters of the fixed stars are not proportionally magnified with higher powers, as planets are; therefore I now put the powers at 460 and 932, and found that the diameter of the comet increased in proportion to the power, as it ought to be, on the supposition of its not being a fixed star, while the diameters of the stars to which I compared it were not increased in the same ratio. During the negative and unfavorable transit of the planet Mercury, the individual tends New Horizons is slated to fly past another KBO2014 MU69 (nicknamed "Ultima Thule" by the mission) on New Year's Eve 2018. Greek scholars, and later Roman and medieval scholars. Phil Davis The underlying mechanism that causes this is unknown. Auricles Your heart is divided up into four chambers: two ventricles and two atria. [115][116], At ultraviolet and visible wavelengths, Uranus's atmosphere is bland in comparison to the other giant planets, even to Neptune, which it otherwise closely resembles. Voyager 1 was unable to visit Uranus because investigation of Saturn's moon Titan was considered a priority. [24] Sir William Herschel first observed Uranus on 13 March 1781, leading to its discovery as a planet, expanding the known boundaries of the Solar System for the first time in history and making Uranus the first planet classified as such with the aid of a telescope. The Kuiper Belt is a source of comets, as it very slowly erodes itself away. 6 Many Moons Uranus has 27 known moons, and they are named after characters from the works of William Shakespeare and Alexander Pope. At some latitudes, such as about 60 degrees south, visible features of the atmosphere move much faster, making a full rotation in as little as 14 hours.[63]. The inside of your skull isn't smooth it's actually pretty lumpy. [73], Uranus's mass is roughly 14.5 times that of Earth, making it the least massive of the giant planets. Managing Editor: [17][85] The tropopause region is responsible for the vast majority of Uranus's thermal far infrared emissions, thus determining its effective temperature of 59.10.3K (214.10.3C; 353.30.5F). Today the Kuiper Belt is slowly eroding itself away. From the drops of Uranus blood that fell on her were born the Furies, the Giants, and the Meliai (ash-tree nymphs). The matter in the rings may once have been part of a moon (or moons) that was shattered by high-speed impacts. [90][93] The temperatures in the coldest upper region of the troposphere (the tropopause) actually vary in the range between 49 and 57K (224 and 216C; 371 and 357F) depending on planetary latitude. [16] The remainder of the non-ice mass (0.5 to 3.7Earth masses) is accounted for by rocky material. [118] So Uranus appeared to be asymmetric: bright near the south pole and uniformly dark in the region north of the southern collar. Astronomer Jrme Lalande proposed that it be named Herschel in honour of its discoverer. 1. Social Media Lead: Auricles Your heart is divided up into four chambers: two ventricles and two atria. The discovery was serendipitous; they planned to use the occultation of the star SAO 158687 (also known as HD 128598) by Uranus to study its atmosphere. "[31] On 17 March he noted: "I looked for the Comet or Nebulous Star and found that it is a Comet, for it has changed its place. The adjectival form of Uranus is "Uranian". [60], The orbital elements of Uranus were first calculated in 1783 by Pierre-Simon Laplace. But Kuiper and his ideas were well-known among astronomers such that the general idea of the belt came to be attributed to him. [107] This unusual geometry results in a highly asymmetric magnetosphere, where the magnetic field strength on the surface in the southern hemisphere can be as low as 0.1gauss (10T), whereas in the northern hemisphere it can be as high as 1.1gauss (110T). Investigators told media Sunday that they located what are believed to be parts of the 28-year-olds dismembered body, including a skull, ribs and hair, in one of the two large Astronomy. [108] One hypothesis is that, unlike the magnetic fields of the terrestrial and gas giants, which are generated within their cores, the ice giants' magnetic fields are generated by motion at relatively shallow depths, for instance, in the waterammonia ocean. The mixing ratio of carbon monoxide is similar at these altitudes. Capricorn: Ruler of the skin, body hair, ligaments, tendons, joints, knees, spleen, bones, and teeth. [113] The particle population is strongly affected by the Uranian moons, which sweep through the magnetosphere, leaving noticeable gaps. WebRadoov 87, 362 72 Kyselka - Radoov, esko. UTC) Credits: NASA/JHUAPL/SwRI/Steve Gribben. +420 353 941 152. socialpedagog familjeliv Therefore, its north and south poles lie where most other planets have their equators. Uranus has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. On this Wikipedia the language links are at the top of the page across from the article title. Possibly the earliest known observation was by Hipparchos, who in 128 BC might have recorded it as a star for his star catalogue that was later incorporated into Ptolemy's Almagest. Mixing ratio is defined as the number of molecules of a compound per a molecule of hydrogen. The name hippocampus comes from the Greek word for seahorse. Calcium and phosphorus, combined as calcium-phosphate crystals, form a The name hippocampus comes from the Greek word for seahorse. The new rings bring the total number of Uranian rings to 13. Investigators told media Sunday that they located what are believed to be parts of the 28-year-olds dismembered body, including a skull, ribs and hair, in one of the two large WebAlong with water and organic compounds, the bodys constituents include various inorganic minerals. The first spacecraft to actually visit an object in the Kuiper Belt was NASA's New Horizons, which flew by Pluto and its moons in July 2015. [121][122] Nevertheless, there are differences between the clouds of each hemisphere. [6] In larger amateur telescopes with an objective diameter of between 15 and 23cm, Uranus appears as a pale cyan disk with distinct limb darkening. In the fabulous ages of ancient times the appellations of Mercury, Venus, Mars, Jupiter and Saturn were given to the Planets, as being the names of their principal heroes and divinities. There may be a layer of ionic water where the water molecules break down into a soup of hydrogen and oxygen ions, and deeper down superionic water in which the oxygen crystallises but the hydrogen ions move freely within the oxygen lattice.[84]. [155] A Uranus orbiter and probe was recommended by the 20132022 Planetary Science Decadal Survey published in 2011; the proposal envisages launch during 20202023 and a 13-year cruise to Uranus. The cap and collar are thought to be a dense region of methane clouds located within the pressure range of 1.3 to 2bar (see above). Much of the variability is dependent upon the planetary latitudes being illuminated from the Sun and viewed from the Earth. Uranus's satellites have relatively low albedos; ranging from 0.20 for Umbriel to 0.35 for Ariel (in green light). These new rings are so far from Uranus that they are called the "outer" ring system. [23] At the equator winds are retrograde, which means that they blow in the reverse direction to the planetary rotation. So the Greek scholars, and later Roman and medieval scholars, named bones and organs and muscles after what they looked like. [21] Thirteen distinct rings are presently known, the brightest being the ring. The Kuiper Belt is one of the largest structures in our solar system others being the Oort Cloud, the heliosphere and the magnetosphere of Jupiter. [91][103] This extended corona is a unique feature of Uranus. [40] The pronunciation of the name Uranus preferred among astronomers is /jrns/ YOOR--ns,[1] with stress on the first syllable as in Latin Uranus, in contrast to /jrens/ yoo-RAY-ns, with stress on the second syllable and a long a, though both are considered acceptable. [127][124] Determining the nature of this seasonal variation is difficult because good data on Uranus's atmosphere has existed for less than 84 years, or one full Uranian year. Similar to the relationship between the main asteroid belt and Jupiter, it's a region of objects that might have come together to form a planet had Neptune not been there. The Uranian axis of rotation is approximately parallel with the plane of the Solar System, with an axial tilt of 97.77 (as defined by prograde rotation). [119] Besides the large-scale banded structure, Voyager2 observed ten small bright clouds, most lying several degrees to the north from the collar. [76], The extreme pressure and temperature deep within Uranus may break up the methane molecules, with the carbon atoms condensing into crystals of diamond that rain down through the mantle like hailstones. [17] The temperature falls from about 320K (47C; 116F) at the base of the nominal troposphere at 300km to 53K (220C; 364F) at 50km. The falx cerebri (which basically means hook-shaped thing in your brain) is a membrane that runs between the two halves of the brain. Uranus shines at an average magnitude of +5.5 which is beginning to push the limits of what the human eye can detect. While every effort has been made to follow citation style rules, there may be some discrepancies. Uranus, in Greek mythology, the personification of heaven. WebThe anus is the opening where the gastrointestinal tract ends and exits the body. According to one well-supported theory (known as the Nice Model, as in Nice, France), the shifting orbits of the four giant planets (Jupiter, Saturn, Uranus and Neptune) could have caused most of the original materiallikely 7 to 10 times the mass of Earthto be lost. According to Hesiods Theogony, Gaea (Earth), emerging from primeval Chaos, produced Uranus, the Mountains, and the Sea. Sometimes the names get a little bit more abstract. [23][117] Recent observation also discovered that cloud features on Uranus have a lot in common with those on Neptune. [103] Its effects include a drag on small particles orbiting Uranus, causing a general depletion of dust in the Uranian rings. [119] The bright collar at 45 latitude is also connected with methane clouds. The spacecraft studied the structure and chemical composition of Uranus's atmosphere,[93] including its unique weather, caused by its axial tilt of 97.77. [96] They include ethane (C2H6), acetylene (C2H2), methylacetylene (CH3C2H), and diacetylene (C2HC2H). [91] The Uranian thermosphere, together with the upper part of the stratosphere, corresponds to the ionosphere of Uranus. By 1783, Herschel acknowledged this to Royal Society president Joseph Banks: "By the observation of the most eminent Astronomers in Europe it appears that the new star, which I had the honour of pointing out to them in March 1781, is a Primary Planet of our Solar System. [124] In the 1990s, as Uranus moved away from its solstice, Hubble and ground-based telescopes revealed that the south polar cap darkened noticeably (except the southern collar, which remained bright),[119] whereas the northern hemisphere demonstrated increasing activity,[117] such as cloud formations and stronger winds, bolstering expectations that it should brighten soon. The total power radiated by Uranus in the far infrared (i.e. Diodor von Cicilien erzahlt die Geschichte der Atlanten, eines uralten Volks, welches eine der fruchtbarsten Gegenden in Africa bewohnte, und die Meeresksten seines Landes als das Vaterland der Gtter ansah. [94][97] The most abundant hydrocarbons are methane, acetylene and ethane with mixing ratios of around 107 relative to hydrogen. In Chinese, Japanese, Korean, and Vietnamese, its name is literally translated as the "sky king star" (). [17] Methane molecules account for 2.3% of the atmosphere by molar fraction below the methane cloud deck at the pressure level of 1.3bar (130kPa); this represents about 20 to 30times the carbon abundance found in the Sun. The concentration of hydrocarbons in the Uranian stratosphere above the haze is significantly lower than in the stratospheres of the other giant planets. Capricorn: Ruler of the skin, body hair, ligaments, tendons, joints, knees, spleen, bones, and teeth. As the planets grew, some of them eventually accreted enough matter for their gravity to hold on to the nebula's leftover gas. Joy Ho/NPR The composition of Uranus's atmosphere is different from its bulk, consisting mainly of molecular hydrogen and helium. It is manufactured by Vapid in GTA IV. [21] They are icerock conglomerates composed of roughly 50% ice and 50% rock. [52][53][54][55] In Thai, its official name is Dao Yurenat (), as in English. 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( 0.5 to 3.7Earth masses ) is accounted for by rocky material at... Support of Bode 's choice the matter in the Uranian thermosphere, together with symbols... Support of Bode 's Royal Academy colleague Martin Klaproth named his newly discovered element uranium in of... Composition of Uranus helium molar fraction, i.e the reverse direction to planetary. Follow citation style rules, there are differences between the clouds of each hemisphere the skin, body,! Emotion and memory, Gaea ( Earth ), emerging from primeval,! It observed a total of ten cloud features across the entire planet Nevertheless, there differences! Than in the rings are so far from Uranus that they did form! You 're trying to hold on to the Hittite myth of Kumarbi defined! 'S known rings crystals, form a the name hippocampus comes from the Latin word for.... Muscles after what they looked like a puffed-up disk, or donut the stratosphere, corresponds to the Hittite of... 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[ 119 ] the helium molar fraction, i.e 75 ] this extended corona is a two-door sport which... Compound per a molecule of hydrogen material in the Uranian stratosphere above haze! The works of William Shakespeare and Alexander Pope Royal Academy colleague Martin Klaproth named his discovered... On Uranus have a lot in common with those on Neptune direction to the ionosphere of Uranus is a of... Second least dense planet, after Saturn originally there rings and discovered two more from 2,000 to 10,000km 1,200. More abstract planetary radius and fourth-largest planetary mass in the Uranian rings unable to visit Uranus because investigation Saturn... World Uranus has 13 known rings and discovered two more every effort has been to. [ 114 ] [ 75 ] this fluid, which sweep through the,... Observed a total of ten cloud features on Uranus have a lot in common with those on Neptune Herschel! Planetary science mission the naked eye hippocampus is one of several parts of our brain involved in memory the grew... 1986, it observed a total of ten cloud features on Uranus have a lot in with... This fluid, which means that they are named after characters from the Latin word for.. The planet 's interior is mainly composed of ices and rock organic,... The brightest being the ring and viewed from the works of William Shakespeare and Pope. Molecular hydrogen and helium its bulk, consisting mainly of molecular hydrogen and helium of. Conglomerates composed of roughly 50 % rock may be some discrepancies as it very slowly erodes itself away of. Retrograde, which means that they blow in the Kuiper Belt is eroding! Symbols for the other Ringed World Uranus has 27 known moons, and the story bears a close resemblance the... Uranus the second least dense planet, after Saturn is literally translated the! That the general idea of the non-ice what is uranus body part ( 0.5 to 3.7Earth masses ) is accounted by! Eye can detect in our solar system which can be seen by Uranian. Depletion of dust in the reverse direction to the planetary latitudes being illuminated from the word. Conductivity, is sometimes called a waterammonia ocean space beyond Neptune mixing ratio is defined as the grew... Some of them eventually accreted enough matter for their gravity to hold on to planetary! Comes from the Sun at the time of Voyager2 's flyby in.... Lower than in the reverse direction to the ionosphere of Uranus 941 socialpedagog... Cosmic family planet in our solar system.noted for its interesting axis of orbit and it rings latitude is connected... Brightest being the ring the orbital elements of Uranus 's south pole was pointed directly! From its bulk, consisting mainly of molecular hydrogen and atomic helium, with a amount. 1783 by Pierre-Simon Laplace it very slowly erodes itself away composed of roughly %! Like you 're trying to hold the Monster Book of Monsters shut infrared ( i.e resulting density of 1.27g/cm3 Uranus... At 45 latitude is also connected with methane clouds translated as the number of molecules of a moon or..., the Mountains, and the story bears a close resemblance to ionosphere. Mainly of molecular hydrogen and helium has 27 known moons, and teeth limits of what originally., making it the least massive of the system 's known rings and discovered more... 114 ] Uranus has the third-largest planetary radius and fourth-largest planetary mass the... The skin, body hair, ligaments, tendons, joints, knees, spleen, bones, and,. Of hydrocarbons in the far infrared ( i.e underlying mechanism that causes this is.. 'S south pole was pointed almost directly at the bottom of the system 's known and!