A galaxy is a huge group of stars held together by the gravitational force.
(i) Spiral galaxy
(ii) Elliptical galaxy
(iii) Irregular galaxies
2. Milky Way:
(i) The galaxy of which our solar system is a part.
(ii) Its diameter is about one lakh light years and the central thickness is about 6000 ly.
(iii) Milky way is spiral in shape.
- The Stars
- All star…
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