O stars is a lecture about an entity, source, and/or object observed using radiation astronomy that is classified as an O-type star.
You are free to take this quiz based on O stars. Once you've read and studied it, the links contained within, listed under See also, External links and the {{stars resources}} template, you should have adequate background to score 100 %.
Enjoy learning by doing!
Quiz
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Hypotheses
edit- Stars that emit light do so because they are receiving electron irradiation.
See also
editExternal links
edit- NASA/IPAC Extragalactic Database - NED
- The SAO/NASA Astrophysics Data System
- SIMBAD Astronomical Database