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Because of interstellar dust, astronomers can see at most about 5 kpc into the disk of the galaxy at visual wavelengths. what percentage of the galactic disk does that include? (hint: consider the area of the entire disk versus the area visible from earth. the diameter of the milky way galaxy is approximately 25 kpc.)
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Because of interstellar dust, astronomers can see at most about 5 kpc into the disk of the galaxy at...
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