| Chapter
12�� The Milky Way Galaxy |
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| � | Band of light running around sky in a �great circle� |
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| � | Name from Greeks and Romans:�
Milky Circle, Milky Road |
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| � | Galileo saw it was made of thousands of faint stars |
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| � | Great Circle suggests a plane of material with us in plane (like
ecliptic) |
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