1. OBJECTIVES THE OUTER PLANETS ARE JUPITER,SATURN,URANUS, NEPTUNE, PLUTO. JUPITER, SATURN, URANUS, AND NEPTUNE(ALSO CALLED THE JOVIAN PLANETS) AREMUCH LARGER THAN THE EARTH THE ARE RICH IN HYDROGEN GAS AND/ORITS COMPOUNDS, SUCH AS WATER,METHANE,AND AMMONIA.

2. . THEY HAVE DEEP, THICK ATMOSPHERESAND NO SOLID SURFACE. THEY HAVE MANY MOONS AND RINGS. PLUTO IS FAR SMALLER AND HAS VERYDIFFERENT STRUCTURE THAN OTHER OUTERPLANETS. IT IS A MIX OF MAINLY ROCK ANDFROEN WATER. 3. Jupiter is the fifth planet from the Sun and thelargest planet in the Solar System. It is a gas giant with mass one-thousandththat of the Sun but is two and a half timesthe mass of all the other planets in theSolar System combined. Jupiter is classified as a gas giant alongwith Saturn, Uranus and Neptune. 4. Together, these four planets aresometimes referred to as the Jovian orouter planets The Romans named the planet afterthe Roman god Jupiter. Jupiter can reach unapparentmagnitude of 2.94, bright enough to castshadows 5. Jupiter is primarily composedof hydrogen with a quarter of its massbeing helium. It may also have a rocky core of heavierelements, but like the other gas giants,Jupiter lacks a well-defined solid surface. 6. Orbit and rotation Jupiter is the only planet that has a center ofmass with the Sun that lies outside the volumeof the Sun, though by only 7% of the Sun'sradius. The average distance between Jupiter andthe Sun is 778 million km There are also at least 67 moons, including thefour large moons called the Galileanmoons that were first discovered by GalileoGalilei in 1610. 7. ORBIT AND ROTATION 8. Ganymede, the largest of thesemoons, has a diameter greaterthan that of the planet Mercury. 9. SATURN 10. SATURN is the sixth planet from the Sun and thesecond largest planet in the Solar System,after Jupiter. Saturn is a gas giant with an average radiusabout nine times that Of Earth. Saturn's interior is probably composed of acore of iron, nickel and rock, surrounded by adeep layer of metallic hydrogen, anintermediate layer of liquidhydrogen and liquid helium and an outergaseous layer. 11. The planet exhibits a pale yellow hue due toammonia crystals in its upper atmosphere. Sixty-two known moons orbit the planet; fifty-threeare officially named. This does not include thehundreds of "moonlets" within the rings. Titan, Saturn's largest and the Solar System's secondlargest moon, is larger than the planet Mercury andis the only moon in the Solar System to retain asubstantial atmosphere. 12. Orbit and rotation The average distance between Saturn andthe Sun is over 1.4 billion kilometer's (9 AU). With an average orbital speed of 9.69 km/s, ittakes Saturn 10,759 Earth days (or about29 years), to finish one revolution around theSun. The elliptical orbit of Saturn is inclined 2.48relative to the orbital plane of the Earth. 13. Titan (or Saturn VI) is thelargest moon of Saturn. 14. URANUS 15. Uranus is the seventh planet from the Sun. It has the third-largest planetary radius andfourth-largest planetary mass in the SolarSystem. astronomers sometimes place them in aseparate category called "ice giants". Saturn's in its primary composition of hydrogenand helium, contains more "ices" such aswater ,ammonia, and methane, along withtraces of hydrocarbons. 16. It is the coldest planetary atmosphere inthe Solar System, with a minimumtemperature of 49 K . It is the only planet whose name is derivedfrom a figure from Greek mythology The wind speeds on Uranus can reach 250meters per second (900 km/h, 560 mph). 17. ORBIT AND ROTATION Uranus revolves around the Sun onceevery 84 Earth years. Its average distancefrom the Sun is roughly 3 billion km (about20 AU). The intensity of sunlight on Uranus is about1/400 that on Earth. Its orbital elements were first calculated in1783 by Pierre-Simon Laplace. 18. NEPTUNE 19. Neptune is the eighth and farthest planet fromthe Sun in the Solar System. It is the fourth-largest planet by diameterand the third-largest by mass. Among the gaseous planets in the solarsystem, Neptune is the most dense. 20. Neptune was the first planet found bymathematical prediction rather thanby empirical observation. Neptune was subsequently observed on 23September 1846 its largest moon , Triton, was discoveredshortly thereafter, though none of the planet'sremaining 13 moons were locatedtelescopically until the 20th century. 21. Triton is the largest moon ofthe planet Neptune 22. ORBIT AND ROTATION The average distance between Neptuneand the Sun is4.50 billion km (about30.1 AU) It completes an orbit on average every164.79 years, subject to a variability ofaround 0.1 years. The elliptical orbit of Neptune is inclined1.77 compared to the Earth. Because ofan eccentricity of 0.011. 23. PLUTO 24. Pluto Pluto, formal designation 134340 Pluto, isthe second-most-massive known dwarfplanet in the Solar System(after Eris) andthe tenth-most-massive body observeddirectly orbiting the Sun. Originally classified as the ninthplanet from the Sun. 25. PLUTO Pluto is composed primarily of rock andice and is relatively small, approximatelyone-sixth the mass of the Earth'sMoon and one-third its volume. 26. NEW UPDATE OF PLUTO Pluto has been called "an oddball littleplanet," "the misfit of the solar system",and "an elusive outcast. Pluto lies on what we consider the edgeof the solar system. Today, it's a neglectedlittle oddity in a too distant orbit.Someday, it may be a busy spaceport,gateway to the stars, and rich with touristdollars.