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Explorations an Introduction to Astronomy Thomas T. Arny | ||||||||
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Chapter
Images
Chapter 15, Figure 8
Figure
15.8
Artist's
sketch of the Milky ay showing top
and side views, illustrating the disk, bulge, and halo. Notice how thin the
disk is and how the halo surrounds the disk much as a bun surrounds a hamburger.
Because the Milky ay's stars gradually
thin out and do not just stop at some distance, its size is only labeled approximately.
The size of the dark matter halo in which the Milky ay is embedded is very uncertain, so it is
shown only schematically. It is omitted from the top view for clarity.
