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Old May 21 2013, 12:03 PM   #4
Asbo Zaprudder
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Re: Milky Way Galaxy

I believe the current interpretation of the observations is that the Milky Way is an SBc barred spiral with two major spiral arms.

http://www.space.com/5448-images-milky-loses-arms.html

http://arxiv.org/pdf/astro-ph/0203110v1.pdf

But, as Deckerd says, the interpretation is not a certainty.
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