a closer look at the planets
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A CLOSER LOOK AT THE PLANETS. IN ORDER FROM THE SUN. MERCURY VENUS EARTH MARS JUPITER SATURN URANUS NEPTUNE. M y V ery E nergetic M other J ust S erved U s N oodles!. MERCURY. Smallest planet Heavily cratered No moons - PowerPoint PPT PresentationTRANSCRIPT
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A CLOSER LOOK AT
THE PLANETS
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IN ORDER FROM THE SUN1. MERCURY2. VENUS3. EARTH4. MARS5. JUPITER6. SATURN7. URANUS8. NEPTUNE
My Very Energetic Mother Just Served Us Noodles!
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MERCURY• Smallest planet
• Heavily cratered
• No moons
• No atmosphere to trap heat so temps can be -180oC at night and rise to 400oC during the day!
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MERCURY con’t
• It takes 88 days to revolves around the sun.
• It take 59 days to spin once on its axis.
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THE MESSENGER• Launched in 2004 and
settled into orbit around Mercury in March 2011.
• Reached speeds of 225,300km/h.
• It was a 7.9 billion km journey.
• It is taking photos and measurements.
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VENUS• Brightest object in the sky
after the sun and moon.
• Thick poisonous CO2 and sulfuric acid atmosphere.
• No moons
• Nearly the same size as Earth (“sister” planets).
• Hottest planet.
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VENUS con’t• Takes 225 days to
revolve around the sun.
• Takes 243 days to spin once on its axis. It spins backwards compared to all other planets.
• Has a volcano bigger than Mt. Everest!
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MAGELLAN• Took many pictures and
measurements in the early 1990’s.
• Was purposely crash landed on Venus and became non-operational.
• There have been dozens of other attempts to reach and study Venus but so far they have failed.
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EARTH• The only planet with
large amounts of water on its surface (> 70%).
• The thick atmosphere keeps temperatures in a live-able range.
• Only known planet with living things.
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• Has one moon (Luna) which is responsible for our ocean tides.
• Takes 365.25 days to revolve around the sun.
• Takes 23.96 hours to spin once on its axis.
EARTH con’t
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MARS• Called the RED PLANET.
• Named after the God of War (Romans thought the red must be bloodshed).
• Very cold and thin atmosphere.
• 2 moons (Phobos & Deimos)
• Ice covers the poles.
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MARS con’t• Signs that there were
once: volcanoes, glaciers and floods.
• Takes 687 days to revolve around the sun.
• Takes 24.7 hours to spin once on its axis.
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MARS ROVER• There have been 3
Mars Rovers that have landed and travelled terrain on the planet.
• “Curiosity” landed in the summer of 2012.
• http://mars.jpl.nasa.gov/msl/mission/overview/
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JUPITER• The largest planet made
of mostly hydrogen and helium up to 10,000 miles deep.
• Known for its GREAT RED SPOT, which is a giant hurricane 3 times the size of Earth! It has existed for hundreds of years and shows no signs of slowing down.
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JUPITER con’t• At least 60 moons! The
four largest moons are: Io, Europa, Ganymede, and Calisto.
• Takes 12 years to revolve around the sun.
• Takes 9.8 hours to spin once on its axis.
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SATURN• Made up of mostly
hydrogen and helium.
• Surrounded by thousands of rings. There is debate over how the rings formed.
• Has more than 30 moons (most are ice covered).
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SATURN con’t• Largest moon is TITAN. It is
the only moon in the solar system to have an atmosphere composed of mostly nitrogen.
• Titan is bigger than Mercury.
• Takes 29.5 years to revolve around the sun.
• Takes 10.2 hours to spin once on its axis.
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URANUS• Another ringed planet
made of many gases.
• 11 thin rings of some unknown black material.
• Said to be “lying on its side” because its axis of rotation is in nearly the same plane as its orbit.
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URANUS con’t• At least 16 moons (5
large and 11 small).
• Takes 83.8 years to revolve around the sun.
• Takes 17.9 hours to spin once on its axis. It also spins backwards compared to the other planets.
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NEPTUNE• Was mistaken for a star
for hundreds of years… cannot be seen without a telescope.
• Has 2 rings.
• Methane gives it a bluish tint.
• Named after the Roman God of the Sea.
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NEPTUNE con’t• Has 8 moons. Triton is
the largest and is the coldest measured object in our Solar System.
• Takes 164 years to revolve around the sun.
• Takes 19.1 hours to spin once on its axis.
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PLUTO – NOT A PLANET!• Removed from
planets list in 2004 by NASA.
• Smaller than our moon.
• Basically an ice ball with some rock and methane.
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PLUTO con’t• Has one moon named
Charon which is 40% of the planets size!
• Takes 248 years to revolve around the sun.
• Takes 6.4 days to spin once on its axis.