The Solar System Where we live!.

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Presentation transcript:

The Solar System Where we live!

Mercury Mercury is the planet closest to the sun. Mercury’s surface looks like the moon. It is very cratered. 3.8 billion years ago Mercury has no atmosphere to speak of No moons

Mercury Mercury is the fastest planet – 30 mps Mercury’s revolution is 88 days, rotation is 59 One day lasts 176 Earth days Gravity is 1/3 of E Temps range from 840 to -275

Mercury Mercury is 3032 miles at the equator Mercury is hard to see because it is close to Sun. Seen in phases Named after Roman god of commerce, travel, and thievery

Mercury Dust covers the surface of the planet Mariner 10 came close in 1974-1975.

Venus 4.6 billion years old 2nd planet from the sun, 67 million miles from the sun Rotation- 243 E days Revolution- 225 E days 900 to – 225 degrees! Mass- .815 of Earth

Venus Earth’s twin due to size, density, and gravity. Temperature 900F due to runaway greenhouse effect. 97% Carbon Dioxide- atmospheric Pressure is 90 times 21+ spacecraft have visited

Venus Volcanoes, rocky, craters, basins, highlands Mount Maxwell – 17 times higher than Everest Oceans once- boiled away Photojournal: http://photojournal.jpl.nasa.gov/targetFamily/Venus

Mars

Mars The Red Planet – reminded ancients of blood and war. Names after the Roman god of war Has 2 moons- Phobos and Deimos (fear and terror) Avg 142 million miles from the sun

Mars The soil is rusted because it has a high iron content The large volcano is Olympus Mons (over 3 Mount Everests!) Ice caps at both poles Once believed to have water Scientists thought “canali” meant canals- canals= life

Mars Temperatures range from super cold to barley above freezing A Martian day is almost the same as Earth’s but a year is twice as long (687 days) Mars has seasons like Earth because its axis is tilted about 25 degrees

Asteroids Asteroids are bit and chunks of solid material left over form the formation of our solar system. Most are in orbit between Mars and Jupiter- asteroid belt (belt asteroids) Some have been captured- like Mars’ moons Some cross Earth’s orbit- near Earth asteroids

Solar system picture: http://www. aerospaceguide Solar system picture: http://www.aerospaceguide.net/solar_system/solar_system.jpg Veus- http://blogs.sundaymercury.net/weirdscience/assets_c/2009/08/venus1-thumb-450x504.jpg http://rocksfromspace.open.ac.uk/images/venus.jpg

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