Question

What are the regions of the stellar atmosphere?

Answer 1

1. Photosphere
2. Chromosphere
3. Corona

Thanks to
Hunaid L. Hanfee
https://socratic.org/users/hunaid-h

Explanation:

Be sure to check the Site for previous answers! This one was a featured answer a year ago.
https://socratic.org/questions/what-is-the-sun-s-atmosphere-called#257418

Details and graphics are with thee original answer post.