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Overview of the Solar System What is wrong with this picture? http://www.wpclipart.com/space/solar_system/solar_system_large.png Our solar system, “from the top” Terrestrial Planets http://photojournal.jpl.nasa.gov/ jpegMod/PIA03103_modest.jpg

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what is wrong with this picture
What is wrong with this picture?

http://www.wpclipart.com/space/solar_system/solar_system_large.png

terrestrial planets
Terrestrial Planets

http://photojournal.jpl.nasa.gov/

jpegMod/PIA03103_modest.jpg

http://photojournal.jpl.nasa.gov/catalog/PIA01252

http://solarviews.com/cap/venus/venusvis.htm

http://apod.nasa.gov/apod/ap950622.html

asteroids
Asteroids

Ceres

Ida and Dactyl

http://apod.nasa.gov/apod/ap990807.html

http://hubblesite.org/newscenter/

archive/releases/2005/27/

Mathilde

http://www.gsfc.nasa.gov/gsfc/spacesci/near/eros.htm

http://apod.nasa.gov/apod/ap970630.html

http://www.alcyone.de/POrbits/english/asteroidsbelt.html

http://lasp.colorado.edu/~bagenal/3750/ClassNotes/Class23/Class23.html

giant planets
Giant Planets

http://photojournal.jpl.nasa.gov/

catalog/PIA01492

http://photojournal.jpl.nasa.gov/

images/Uranus.gif

http://photojournal.jpl.nasa.gov/catalog/PIA01509

Ice Giants

http://photojournal.jpl.nasa.gov/catalog/PIA02225

Gas Giants

comets
Comets

Halley (1910)

Hyakutake

http://www.solarviews.com/cap/comet/haldet.htm

http://www2.jpl.nasa.gov/comet/hyakutake/gif/burger2.jpg

Comet Tempel 1 (7/4/05)

Halley’s nucleus

http://www.windows.ucar.edu/tour/link=/comets/Kuiper_belt.html

Deep Impact

http://apod.nasa.gov/apod/ap961210.html

Viewed from afar

http://photojournal.jpl.nasa.gov/catalog/PIA02137

how big is the solar system
How big is the solar system?
  • If the solar system would fit into this room, how big would the Sun be?
  • If the Sun is actually only 3 mm (1/10th inch) in our model, how big would the Earth be? Jupiter?
  • IN ONE WORD, how would you describe most of the space in the solar system?

http://antwrp.gsfc.nasa.gov/apod/ap990505.html

the closest star
The closest star
  • Alpha Centauri, the brightest star in the nearest star system, is very much like the Sun.
  • In our model, with the stars the size of small balls, how far away do you think would we find Alpha Centauri?

http://www.solstation.com/stars/cent2.jpg

so where are we
So… Where are we?
  • What is this?
  • What is the difference between the solar system and a galaxy?

http://antwrp.gsfc.nasa.gov/apod/ap050104.html

our neighbor the andromeda galaxy
Our neighbor, the Andromeda Galaxy

http://antwrp.gsfc.nasa.gov/apod/ap021021.html

a look at the nearby universe
A look at the nearby universe

http://antwrp.gsfc.nasa.gov/apod/ap040309.html

guiding questions
Guiding Questions
  • In what sense is the solar system flat?
  • List some ways in which the solar system is an “orderly” place.
  • Name some “disorderly” characteristics of the solar system.
  • Why do astronomers draw such a clear distinction between the inner and outer planets?
  • Name at least three important differences between the terrestrial planets and the giant planets.
  • Why are astronomers so interested in interplanetary matter?
  • In a word, how would you describe most of the space in the solar system?
  • How do the sizes of the planets compare to the space between them?
  • Differentiate between our solar system and our galaxy.