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Distinguish between the terms spiral galaxy and irregular galaxy

User Saxos
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Answer:

A spiral galaxy consists of a flattened, revolving disk with very fast rotating arms. The most popular type of galaxy is an elliptical galaxy, which has a roundish shape and shows little or no formation of stars. A galaxy with no specified shape that has very young stars is an irregular galaxy.

Step-by-step explanation:

Since the central bulge looks elongated, like a bar, some spiral galaxies are what we call "barred spirals." ... Like spiral galaxies, they have a bulge and a halo, but they do not have the flat disk of stars. Elliptical stars appear to be older. Irregular galaxies have no shape or structure familiar to them.

User Emad Salah
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