“The Astronomer’s Wife” uses two sets of character contrasts:

Wife vs. husband

Astronomer vs. plumber

Explain how the characters are different (explain in terms of physical descriptions, actions, words, gestures etc.)
Describe the wife’s relationship with her husband and the conclusions you can draw.

We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

Also, haven't read "The Astronomer's Wife".