NOTES ABOUT THE SOLAR SYSTEM


external image planets_selectormap.jpg

The solar system formed 4.6 billion years ago. At the center of the solar system lay the Sun. The planets were smaller than the sun. Earth is about 93 million miles away from the sun. At the core of the sun, it is 15 million degrees! Scientists call it a Nuclear Reaction. It is like millions of bombs exploding at once.


Sun


  • The Sun is a medium size star, not a planet
  • It is the nearest star
  • It is more than 5 billion years old
  • The sun is very hot about 15 million digrees in the core and 6000 digrees in the surface €`
  • Over one million earths could fit inside the sun
  • The sun is a yellow dwarf star
  • The Sun has storms called sun spots

Mercury

  • Mercury is the planet closest to the sun
  • Mercury has lots of craters
  • Some of Mercury's craters are 100 km in diameter
  • Its surface looks like our Moon
  • One side of Mercury is cold and the other side is very hot.
  • Its temperature varies from 168°C to 427°C
  • It is on average 57,910,000kmaway from the Sun
  • It is 3 times smaller than the Earth
  • One day on Mercury is 59 days on Earth
  • It has the Caloris Basin that is filled with lava
  • Mercury got it's name after the Roman god of commerce and thievery because it moves quickly across the sky

Venus

  • Second planet from the sun
  • Venus has volcanoes
  • Venus has poisonous air
  • A diameter is 12,104km, a 95% of the Earth
  • 1 day on Venus is 243 days of earth
  • Venus is named after the god of love.

Earth

  • Third planet in the solar system .( near the sun)
  • Has only 1 single moon!
  • Moves 40,000 kilometres in 24 hours! ( 1 day)
  • It's the only planet with life & water


Moon

  • Astronot Buzz Aldrin's footprint was found on 1969.
  • Moon Rocks are about 382kg.
  • The full moon are called the " Blue Moon "
  • In the daytime, the moon's tempeture is 130 degrees to = 265 degrees Mars


Mars

  • Mars is the fourth planet in the solar system
  • Mars is 6.42 x 10 23 kg
  • Mars has a volcano called the Olypus mons which is three times taller than Mount Everest
  • Mars has ice at the poles
  • Mars is sometimes called ''The Red Planet''
  • Mars is the best known planet after Earth

Jupiter

  • Jupiter has a great red spot which is a storm which lasted for more than 300 years
  • Jupiter is made mainly out of gas
  • Jupiter's distance from the sun is 778,412,020 km
  • Jupiter has about 60 known moons
  • It is 5th planet in the solar system
  • It is largest planet in the solar system
  • It is 3rd brightest object in the night sky (after Moon and Venus)
  • It has very thick atmosphere
  • It has colored ring made from tiny rocks, fragments and dust
  • It is very cols, it is 153C below zero
  • It is well known since ancient time

Saturn

  • Saturn has thousands of rings made out of tiny pieces of rocks
  • Saturn is the second largest planet in the solar system
  • Saturn has 57 moons and 3 non confermed Titan is the largest one. It's larger than Mercury
  • Saturn is 5.69 x 1026kg
  • Some of Saturn's rings are made out of ice and small bits of rocks

Uranus

  • Uranus spins like a bowling ball. Scientists think that it was turned over by a comet or a asteroid million of years ago
  • Uranus looks greenish blueish
  • Uranus's rings are narrow,faint and made out of carbonaceous material
  • It is a blue and green planet
  • Uranus is large planet
  • It can fit in more than 60 Earth
  • It is a planet , witch is far away
  • It doesn't have hard ground like Earth
  • It's made out of gases and liquids
  • Uranus is very cold
  • Uranus has 11 rings ,made out of little pieces of ice and rock
  • It has 21 moons

Neptune

  • Neptune has storms
  • Neptune is named after the god of the sea
  • Neptune has rings
  • Neptun's rings are narrow and contain particles called ring arcs
  • In Neptune, a day in there has 16.1 hours.
  • Neptune is blue in color
  • Neptune is 1.02 x 1026 kg
  • Neptune is the last planet in the solar system






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