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Planets

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Tanja Jovanovska

on 19 April 2016

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Transcript of Planets

The Solar System
Our solar system is made up of the sun and everything that travels around it. This includes eight planets and their natural satellites such as Earth's moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids
The sun is the center of our solar system. It contains almost all of the mass in our solar system and exerts a tremendous gravitational pull on planets and other bodies.
Our solar system was formed about 4.6 billion years ago.
Our solar system is located in the Orion Arm of the Milky Way Galaxy.
There are most likely billions of other solar systems in our galaxy. And there are billions of galaxies in the universe
The Outer Solar System has Jupiter, Saturn, Uranus, Neptune these are sometimes called the gas giants
Out past Neptune you’ll find the small planet of Pluto which has a solid but icier surface.
The Solar System is separated by asteroid belt
We have the Inner Solar System which has Mercury, Venus, Earth and not forgetting Mars. These are closest to the sun and are called the terrestrial planets simply because they have very solid rocky surfaces.
The Sun
The sun is a star. A star does not have a solid surface, but is a ball of gas held together by its own gravity.
The sun is the center of our solar system and makes up 99.8% of the mass of the entire solar system.
At the equator, the sun spins once about every 25 days, but at its poles the sun rotates once on its axis every 36 Earth days.
The sun is orbited by eight planets, at least five dwarf planets, tens of thousands of asteroids, and hundreds of thousands to three trillion comets and icy bodies.
Without the sun's intense energy there would be no life on Earth.
The temperature at the sun's core is about 15 million degrees Celsius
Mercury
Mercury is the smallest planet in our solar system - only slightly larger than the Earth's moon.
It is the closest planet to the sun at a distance of about 58 million km
One day on Mercury takes 59 Earth days. Mercury makes a complete orbit around the sun in just 88 Earth days.
Venus is the second closest planet to the sun at a distance of about 108 million km (67 million miles)
One day on Venus lasts as long as 243 Earth days. Venus makes a complete orbit around the sun in 225 Earth days.
Venus is a rocky planet, also known as a terrestrial planet. Venus' solid surface is a cratered and volcanic landscape.
Venus
The planet's extreme high temperatures of almost 480 degrees Celsius make it seem an unlikely place for for life as we know it.
The sun rises in the west and sets in the east on Venus.
Earth is the third planet from the sun at a distance of about 150 million km (93 million miles)
Earth is the perfect place for life.
Earth
One day on Earth takes 24 hours. Earth makes a complete orbit around the sun in about 365 days.
Earth is a rocky planet, also known as a terrestrial planet, with a solid and dynamic surface of mountains, valleys, canyons, plains and so much more. What makes Earth different from the other terrestrial planets is that it is also an ocean planet
Earth's atmosphere protects us from incoming meteoroids, most of which break up in our atmosphere before they can strike the surface as meteorites.
Mars
One day on Mars takes just a little over 24 hours. Mars makes a complete orbit around the sun in 687 Earth days.
Mars is known as the Red Planet because iron minerals in the Martian soil oxidize, or rust, causing the soil - and the dusty atmosphere - to look red.
Mars is a rocky planet, also known as a terrestrial planet. Mars' solid surface has been altered by volcanoes, impacts, crustal movement, and atmospheric effects such as dust storms.
Mars is the fourth planet from the sun at a distance of about 228 million km (142 million miles)
Mars' surface cannot support life as we know it. A key science goal is determining Mars' past and future potential for life.
One day on Jupiter takes about 10 hours. Jupiter makes a complete orbit around the sun in about 12 Earth years.
Jupiter
Jupiter cannot support life as we know it. However, some of Jupiter's moons have oceans underneath their crusts that might support life.
Jupiter is the fifth planet from the sun at a distance of about 778 million km (484 million miles)
Jupiter is a gas-giant planet and therefore does not have a solid surface. However, it is predicted that Jupiter has an inner, solid core about the size of the Earth.
Jupiter's Great Red Spot is a gigantic storm (about the size of two to three Earths) that has been raging for hundreds of years.
Saturn is a gas-giant planet and does not have a solid surface.
Saturn
Saturn is the sixth planet from the sun at a distance of about 1.4 billion km (886 million miles)
Saturn has the most spectacular ring system, which is made up of seven rings with several gaps and divisions between them.
No evidence for life has been found on Mercury. Daytime Temperatures can reach 430 degrees Celsius and drop to -180 degrees Celsius at night.
Mercury is a rocky planet, also known as a terrestrial planet. Mercury has a solid, cratered surface, much like Earth's moon.
One day on Saturn takes 10.7 hours. Saturn makes a complete orbit around the sun in 29 Earth years.
Saturn cannot support life as we know it. However, some of Saturn's moons have conditions that might support life.
A collision with an Earth-sized object may explain Uranus' unique tilt.
Uranus
Uranus is the only giant planet whose equator is nearly at right angles to its orbit
Nearly a twin in size to Neptune, Uranus has more methane in its mainly hydrogen and helium atmosphere than Jupiter or Saturn.
Methane gives Uranus its blue tint.
Neptune is the eighth planet from the sun at a distance of about 4.5 billion km (2.8 billion miles)
Neptune
One day on Neptune takes about 16 hours. Neptune makes a complete orbit around the sun in about 165 Earth years.
Like the other gas giants, Neptune does not have a solid surface.
Neptune cannot support life as we know it.
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