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Stellar active region is a lecture and an article as part of the course on the Principles of radiation astronomy about an entity, source, and/or object observed on or near the surface of the Sun with radiation astronomy.
This quiz that you are free to take is based on this resource. Once you've read and studied it, the links contained within, and listed under See also, you should have adequate background to take this quiz. Enjoy!
See also 
External links