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Jesse S. (Solar System)
Transcript of Jesse S. (Solar System)
The Sun gives life to the Earth and the Earth would have no at all without the energy it receives from the Sun.
The Sun is bigger than can really be imagined, over one million times bigger than the Earth
The Sun is 92.96 million miles or 149.6 million kilometers from the Earth
Jupiter has a diameter of 88,700 miles,or 142,750 kilometers .
The gas giants are entirely composed of dense layers of gas.
The first person to discover and observe Jupiter’s moons was Galileo (1564-1642).
Mercury is the planet closest to the Sun. It is not, however, very close, since it is 36 million miles, or 58 million kilometers away from the Sun!
Unlike the Earth and most other planets Mercury only turns very slowly on its axis, taking 59 days to complete the turn from day to night.
The surface of Mercury is covered with craters and completely dry. There is no possibility of life on Mercury.
Venus is 67 million miles, or 108 million kilometers, from the Sun.
Venus, like the other planet between the Earth and the Sun, Mercury, has no moons.
Venus looks bigger than the Earth in figure 1 because of the very deep layer of gases that surround the planet.
It is the only planet that has an atmosphere containing 21 percent oxygen.
It is the only planet in the solar system that has life.
It is the only planet that has liquid water on its surface.
While a year on Mars might be almost twice as long as a year on Earth, the length of a day there is almost identical. A Martian day is 24 hours and 39 minutes long, less than an hour longer than a day on Earth.
Mars and Earth are similar in so many ways that it’s almost hard to believe we haven’t found anything alive there. But, don’t forget that there are many differences too. Without these differences, Mars would'nt be such an interesting planet to study.
Mars is covered by craters from objects like asteroids and meteorites hitting the planet. Today, 43,000 such craters have been found and that only includes the large ones!
The rings were first seen by Galileo in 1610 through a telescope.
Saturn is 886 million miles, or 1426 million kilometers, from the Sun.
Saturn is the second largest planet in the Solar System, after the giant Jupiter.
The seventh planet from the Sun, it was not known in ancient times, unlike the planets from Mercury to Saturn.
Herschel also discovered 2 of Uranus’ moons with a larger telescope.
Uranus orbits the Sun lying on its side and takes 84 years to complete one orbit. The Earth goes round the Sun in 365 days, one year.
The discovery of the planet Neptune was one of the most exciting discoveries in astronomy.
Neptune is the third largest planet in the Solar System, much smaller than the real giants, Jupiter and Saturn, and only a little bigger than Uranus.
In 2011 Neptune completed the first orbit of the Sun since its discovery 165 years before in 1846.
Pluto was first seen by use of a telescope in 1930. Like Uranus and Neptune, Pluto can not be seen by the naked eye and its existence was not known to the ancient world.
It takes Pluto 248½ years to complete its orbit round the Sun. The Earth takes one year.
Like all the planets Pluto turns on its own axis as it orbits round the sun. Pluto takes about 6½ days to turn on its axis. The Earth takes 24 hours, one day.