cr1i8steisshHannie cr1i8steisshHannie

10-05-2016
Geography

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What are the characteristics of a spiral galaxy

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halo3blake halo3blake

15-05-2016

The disk of the galaxy contains the spiral arms. The disk is a region of star formation and has a great deal of gas and dust. It is dominated by young, blue Population I stars. The central bulge is devoid of gas and dust.

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