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3 TYPES OF GALAXIES, image - Coggle Diagram
3 TYPES OF GALAXIES
ELLIPTICAL
Elliptical galaxies, having no structure have a mixture of Population I and II stars.
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SPIRAL
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The larger a given galaxy is, the faster it spins
The disk, bulge, halo, and the signature arms are the 4 key components of a spiral galaxy.
IRREGULAR
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Irregular galaxies are thought to have once been elliptical or spiral galaxies that lost their shape.
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SIMILARITIES
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Elliptical, spiral, and irregular galaxies all form a mixture of stars, interstellar dust, planets, and gases.
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Almost all distant stars orbit at about the same speed as stars located about 30,000 light-years from their centers.
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