By: Rhyz Abella

 How big is our solar system?  Our solar system is really too big for us to imagine.  The solar system really IS too big for us to imagine. It is FAR more than 9,000,500 miles.Wow.

 What other celestial bodies are in our solar system?  The other bodies are all terrestrial objects--planets, comets, asteroids, moons, and such.  Celestial bodies include stars, planets, galaxies, nebulae, comets, meteoroids, satellites, and asteroids.

 In our solar system there are 9 planets: Mercury, Pluto, Earth, Neptune, Jupiter, Uranus, Venus, Mars, and Saturn.  In the order of closest to the sun to farthest to the sun it would go: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.

 The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields.[11][12] It has a diameter of about 1,392,000 km, about 109 times that of Earth, and its mass (about 2×1030 kilograms, 330,000 times that of Earth) accounts for about 99.86% of the total mass of the Solar System.[13] Chemically, about three quarters of the Sun's mass consists of hydrogen, while the rest is mostly helium. The remainder (1.69%, which nonetheless equals 5,628 times the mass of Earth) consists of heavier elements, including oxygen, carbon, neon and iron, among others.[14]

 Mercury is the closest to the sun.  35,983,047 miles (57,909,100 km) from the sun  Mercury's diameter is 4879 km or 3,032 miles  Mercury is a rocky planet with a huge iron core which makes up a large part of its interior. The core takes up nearly 3/4 of the planet's diameter. Mercury's iron core is about the size of the moon. Iron makes up about 70% of Mercury's total weight making Mercury the most iron-rich planet in the solar system. On top of this core, lies an outer, rocky shell which is about 350 miles (~550 km) thick.

 Venus is almost the same size as Earth  Venus's diameter is 7,257 miles (11,677 kilometres)  The average distance of Venus from the sun is 67,237,910 miles or 108,208,930 km.  Made out of a central iron core and a rocky mantle. The atmosphere of Venus is incredibly dense and cloud covered. The clouds are made of sulfuric acid droplets and sulfur dioxide (instead of water).

 Earth's total surface is an area that measuring 197,000,000 square miles(09,600,000 square kilometres)  Earth, with average distance of 92,955,820 miles (149,597,890 km) from the sun.  Earth has a core of solid and liquid iron, a mantle of ultramafic rock, a crust of complex mineral compounds, and an atmosphere of nitrogen, oxygen, and other gases. Physical and chemical reactions on the Earth include the compound water (dihydrogen oxide or oxidane) in all three of its physical phases. Carbon-cycle (living) organisms utilize and alter the surface of the planet.

 Mars is in km and in miles its m  Mars' average distance from the sun in the course of one complete revolution is 227,939,100 km (141.6 million miles)  Mars is made of rock and iron oxides. It's surface is covered in mountains, volcanoes, valleys, ice caps and dried up river beds. Mars is also very dry like a desert. It is also red because of the iron oxide in the pulverized rock dust.  Mars has two moons, Phobos and Deimos.

 Its diameter at the equator is 142,984 km and its diameter at the poles is 133,708 km. Its volume is ×1015 km³ (1,431,280,000,000,000 km).  Using the Imperial system, Jupiter's average distance - AKA Jupiter's semi major axis - it is million miles away from the sun.  Jupiter is one planet in the solar system which justifies use of the word "gigantic". It is mostly composed of hydrogen, helium, and methane, including the very cold and dense liquid and solid phases of these gases.  Jupiter has 66 known moons, and more are discovered with every space probe we send there. It is likely that there are more not yet identified. The most recent are extremely small. As with the icy moonlets in Saturn's rings, there are millions of small objects orbiting the planet, some as part of Jupiter's own rings.

 Saturn is a gas giant.  Saturn has a mean diameter of approximately 120,000 kilometres (74,000 miles), and a mass 95 times that of Earth.  The average orbital distance of Saturn from the Sun (its semi major axial radius) is 1,433,449,370 km or 890,700,000 miles  Saturn is made up of gases. 94% hydrogen, 6% helium and small amounts of methane and ammonia.  Saturn has 62 moons with confirmed orbits, as of March have been named and 9 are provisional.

 Uranus has a Mass of : ×1025 kg and a Radius of : 25,559 km.  The average distance Uranus is from the Sun is 2,870,990,000 km (1,783,950,480 miles).  Uranus is made out of frozen methane gas giving it the bluish-green color.  The 5 largest moons (boldface) were the earliest discovered. The 13 inner moons are involved with the 13 known rings of Uranus.

 Neptune's diameter is 49,528 kms/30,707 miles. It is about 17 times as massive as Earth, but is not so dense as Earth.  The eighth planet from the sun, having a sidereal period of revolution around the sun of years at a mean distance of 4.5 billion kilometres.  Neptune is made out of gases, mostly methane and ammonia.  Neptune has thirteen known moons as of the year 2010, five of those thirteen having been just recently discovered in 2002 and in 2003.

 Pluto has a diameter of less than 4,000 miles. (6400 kilometres).  About miles ( kilometers).  Pluto has a dense rock core, surrounded by a thick layer of ice (possibly a layer of liquid water near the core), with a frozen nitrogen surface.  Pluto has four known moons. Charon, the largest one, Hydra and Nix, both very small. Charon was discovered in 1978, and Nix/Hydra were identified in 2005.

Hope you liked my Presentation! By: Rhyz ABELLA