MARK GARLICK / SCIENCE PHOTO LIBRARY MARK GARLICK / SCIENCE PHOTO LIBRARY
Illustration of the central region of our Milky Way seen obliquely from above; with the arms and the central bar in their approximate known locations. There are four major arms and one arm fragment (Orion-Cygnus) where the Sun is found. The vertical relief in the arms and central bar and core are shown.
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