List any two advantages of the study of constellation.
Cassiopeia is regarded as constellation not galaxy. Why?
Name the star closest to the earth (other than sun). How far is it from the earth.
What is constellation? Name the constellation which can be seen with naked eyes.
What do you mean by milky-way galaxy? Give the name of galaxy nearest to the milky way.
How many group of the galaxy is classified on the basis of shape and size? Give two examples of each.
Define galaxy. In which galaxy our solar system falls?
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