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<!--Tue Jan 24 2012 19:39:58 GMT-0500 (EST)-->
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Khan Academy
------------
Title: Scale of Solar System
Description: Scale of Solar System
Url: http://www.khanacademy.org/video/scale-of-solar-system?playlist=Cosmology and Astronomy
InternalName: scale-of-solar-system
YoutubeId: GP53b__h4ew
Keywords: Scale, of, Solar, System, big, history, cosmology, astronomy
My Notes
--------
There's not much to take notes on.
Sal compares the sizes of the Sun and all the planets, and the planet's distances from the Sun (in AU).
Jupiter ≅ 5 AU
Saturn ≅ 9 AU
Sal shows various diagrams of orbits (from wikipedia ?)
asteroids
Kuiper Belt
Voyager 1 travels 61,000 km/hr, since 1977
Sedna
eccentric orbit
Oort cloud
50,000 AU from Sun
a light year is about 63,000 AU
</Notes>
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