A spiral galaxy can be described as having a distinct shape characterized by a flat, rotating disk containing stars, gas, and dust, along with a central concentration of stars known as a bulge. The disk often features prominent spiral arms that extend outward from the center, giving the galaxy its name. The spiral arms are regions of active star formation and contain younger, hotter stars, while the bulge typically contains older stars. Surrounding the galaxy, there may also be a faint halo of stars and dark matter. Overall, spiral galaxies exhibit a clear structure and organization, distinguishing them from other types of galaxies, such as elliptical or irregular galaxies.
A spiral galaxy can be described as
no distinct shape
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