It is also part of the course on the principles of radiation astronomy.
You are free to take this quiz is based on the lecture stellar active region at any time.
Once you've read and studied it, the links contained within, listed under See also, and in the astronomy and principles of radiation astronomy templates, you should have adequate background to score 100 %.
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- NASA/IPAC Extragalactic Database - NED
- The SAO/NASA Astrophysics Data System
- SIMBAD Astronomical Database