Glenn Chaple's Observing Basics: Our galaxy in a nutshell
June 2010: Use distance scales to better understand our place in the Milky Way.
Contributed by Glenn Chaple
Published:
April 26, 2010
 If the Milky Way were the size of the United States with the galactic center in Topeka, Kansas, our solar system would be 650 miles away in Columbus, Ohio.
Photo by Astronomy: Kellie Jaeger, after Joseph Caruso; Milky Way: NASA/JPL-Caltech Last month, we scaled down a few currently visible solar system bodies, winding up with a basketball-sized Sun whose most distant major planet, Neptune, is a marble a half mile away. This month, we go galactic, leaving the solar system behind to explore our Milky Way Galaxy. |
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