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Question
What are the types of galaxies?
Short Answer
Solution
Various types of galaxies which are identified according to their shapes are:
- Spiral galaxy: These are the spiral structures that extend from the centre into the disc. It consists of stars, gas and dust in a bulge at the centre and in the extended spiral arms.
- Elliptical galaxy: These galaxies have a nearly ellipsoidal shape which consists of stars, gas and dust.
- Irregular galaxies: These galaxies don’t have a distinct regular shape.
- Barred spiral galaxies: These are spiral galaxies with a central bar-shaped structure composed of stars.
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