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Diagram of the Galaxy in 1919

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The galaxy as it was understood in 1919 (TOP VIEW), its shape and extent outlined by globular clusters, here shown projected on the plane of the galaxy. The solar system is in the small circle. The dotted line is the major axis of the galaxy, with its center marked by the red X. The large circles have radii increasing by intervals of 10,000 parsecs, about 32,600 light years.

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